Gadget Guru Review: Costa Del Mar 580 Lens


One of the biggest sunglasses brands in the Southeast (they’re from Florida), Costa Del Mar has partnered with Eastern Mountain Sports to grow their business in the Northeast, and after looking at the world through their “580 Lenses”, it became clear (see what I did there?) that this was another area where EMS would lead the way in providing exceptional optics for adventurers with eyes.

“What makes these so special?” you ask.  Great question.  In order to answer that, it’s important to understand what the numbers mean.

Maya Black

Costa (that’s my pet name for them) classifies their lenses in two categories: 400 & 580.  The number represents the wavelength of light in nanometers (nm).  So if the next question is, “what?” I won’t make fun of you for being confused (to your face, at least).

So here’s the rundown…

First: nanometers (nm) equals (=) 1 millionth of a millimeter (mm).  That’s literally smaller than small.  So while you think you can’t see something that small, think again, because that’s how small light is, which allows you to see.  It’s a conundrum that is the foundation for sight.

Light is one of many types of electromagnetic waves, including: radio, microwave, infrared, visible light, ultraviolet, x-rays, gamma.  As these rays increase in frequency (ν), their wavelength (λ) gets smaller and vice versa.  The visible light spectrum is between 400 nm & 700 nm, with each color at a different wave length/frequency.  Before 400 nm is ultraviolet light.  After 700 nm is infrared light.

Here are some pictures to help that make more sense:

Electromagnetic Wave Spectrum

Visible Light Spectrum

.7μm = 700nm, which means .4μm = 400nm

Got it?  Good!  We’re not done…

Corbina Tortoise Blue Mirror

Notice in the colorful picture that 400nm is the border between visible and ultraviolet (UV) light.  For Costa glasses, this translates to mean that the 400 series lens from Costa is calibrated to filter out all UV light (A, B and C, the latter which does exist, but minimally).  Also notice that just before 600nm is a brief yellow patch.  That is actually hovering around 580nm.  The lenses in the 580 series are reducing the light in the yellow spectrum, while also enhancing red, green & blue, colors that take up most of that visible light spectrum.

If you were the type of person to ask a lot of questions (like a child, for example), this would be a good time to ask “why?”

The answer is: because yellow’s a difficult color for our eyes to process and results in optical exhaustion and strain.  Here’s a couple of quick examples to illustrate that point:

  • Take a piece of white paper and write on it with a traditional yellow highlighter.  Notice how difficult it is to see what you wrote?  Try the same thing with a pink or blue highlighter, no problem.
  • Hang out in a room with yellow light bulbs.  There will come a point where you need to refresh your eyes because they feel exhausted/strained.  You may feel the urge to rub them or leave the room.  Room’s with pure white bulbs don’t have that intense reaction, hence the growth of the white bulbs.

So the next question should be “how?”

Zane Tortoise Green Mirror

Costa has patented technology (patents: 6,334,680 & 6,604,824) that creates a chemical reaction inside the lens that reduces the yellow and enhances the red, green and blue (RGB).  This is contingent upon light hitting the lens, of course, which it does, especially on sunny days.  These patents ensure that only Costa can use this technology to enhance users’ vision (unless they sell the license on the patent, which would be stupid, in my humble opinion).

When our customers try these on, there are two responses people typically choose from: “WOW!” or “Holy S#!t”.  The optical contrast and quality is that good.  580 lenses come in a variety of material & color options.  Here’s a simple chart to help figure out which lens is for you:

Two materials are listed here, glass and polycarbonate.  After the wild success of the 580 Glass lenses, Costa debuted 580 Polycarbonate as an alternative to the 400 series CR-39 (a harder plastic) but with the superior 580 clarity and contrast.  There are many varieties of polycarbonate blends for sunglass lenses, but all of the them are highly impact resistant.  The trade-off is scratch resistance.  Glass has high scratch resistance, but has a higher risk of shattering.

In short, use polycarbonate (soft plastic) lenses for activities that have a higher risk of smashing your face, and glass for activities that require you to see as clearly as possible without being concerned about weight (it’s heavier).

Isabela Black Coral

Notice how we haven’t even discussed their frames?  Costa produces frames in one of four countries (Japan, Taiwan, Mauritius, China), depending on who specializes in particular materials and construction.  Pairs like Corbina and Blackfin are made in Taiwan because of their specialization in a rubber that grips to the face better when it’s wet (see: sweat, oceans, rivers), whereas popular models like Zane, Fathom & Brine are made in Japan due to their specialization in high durability, lightweight & flexible threaded nylon that maintains shape even when under physical pressure.

All Costa sunglasses are built by hand in Florida.  Many frame styles can get prescription lenses, including 580 prescriptions, new for 2011.  400 Series styles range from $129 (CR-39) to $199 (Glass), while 580 Series styles begin at $169 (Polycarbonate) and max out at $279 (Glass w/metal frames).  There are well over 1500 combinations of frames, frame color, lens quality & lens color, so it’s impossible to stock every option.  That being said, all Eastern Mountain Sports locations can special order any pair for you, so if you stop in to one of our locations that currently carry Costa, don’t be afraid to ask for the perfect pair for you! Check out our online assortment here.

Adam Sherlip

Combining a lot of random interests isn't easy, but Adam Sherlip seems to find a way to mix his passions for awesome gadgetry, hockey and tea into his life.  As the first "Gadget Guru" for Eastern Mountain Sports, Adam worked closely with product managers and vendors to ensure customers get the most appropriate tech tools for their global adventures.  As the Founder and Executive Director of The Hockey Foundation, Adam uses ice hockey to help empower youth, support community development and foster international understanding & cooperation in remote regions of the world, starting in the Himalayas.


  1. September 27, 2011, 11:10 am

    I can’t believe I’ve been going for years wituhot knowing that.

  2. September 26, 2011, 5:53 pm

    Nothing I could say would give you undue ceirdt for this story.

  3. August 12, 2011, 10:48 pm

    Just got my first pair of Costas last week(Blackfin’s with Green Mirror 580′s) and have to say they are without a doubt the best pair of sunglasses I’ve ever worn. My Solar Bat’s just become my backups. If you have any doubt go try a pair of Costa Del Mars on, there are so many styles of frames(over 50) and different lens options that there is a style that will fit your face as well as your lifestyle.

  4. Brett Nagle
    August 12, 2011, 6:32 pm

    Real Glass lenses which enhance the RGB spectrum by producing a chemical reaction are amazing! The blue & green lenses look sick! Me want!!

  5. Amy
    August 12, 2011, 3:29 pm

    My Costa’s are wore out!!! I need a new pair please:)

  6. Amy
    August 12, 2011, 3:29 pm

    My Costa’s are wore out!!! I need a new pair :)

  7. Luke
    August 12, 2011, 3:24 pm

    Its obvious that Costa Del Mar is the best!

  8. Erika
    August 12, 2011, 3:11 pm

    My costas have lasted for years!! Would love to get some for my husband! They rock!

  9. Ben
    August 12, 2011, 2:57 pm

    I got to say, I did not expect that much detail to go into sunglasses, and I’m proud of myself that o could follow along with all the physics talk and wavelength jabber…regardless, I want these sunglasses. I already make sure to only buy polarized sunglasses so when I go kayaking and biking I can enjoy as much of the landscape without glare. But with these I feel like I’m missing out on something.

  10. August 12, 2011, 1:55 pm

    I like the poly copper lenses. Sounds like a good choice for mountain biking.

  11. Kevin
    August 12, 2011, 1:24 pm

    Costa Sunglasses seem to be extremely versatile given the choices of lenses. The choices allow each person to pick the best lens that works for them. I’d love a pair for everyday use because they’re quite stylish and they’d be nice for the reflections off the water when I’m kayaking. The Blue Mirror lenses would probably be best for me because its pretty much the all around lens.

  12. Leah Belanger
    August 12, 2011, 12:09 pm

    I’m most impressed by the customizable options that Costa offers, including prescription lenses! I do a lot if hiking and trail running, with variable lights, so I use something light and prefer an amber when I can get it so I can see clearly in low light levels too. But the 580′sdoctor’s sound like they would resolve the head for an amber color!

  13. Becky
    August 12, 2011, 11:32 am

    What impresses me most is that Costa del Mar puts so much thought into every detail of their sunglasses. I feel like I just had a lesson on how sunglasses work to protect your eyes! After reading this article, of course I want a pair of Costa 580 sunglasses! Who wouldn’t?! I’m a wildlife biologist and I spend a lot of time outdoors and therefore a lot of time wearing sunglases. The polycarbonate lens would be best for me because I have a sensitive nose, so the lighter the better, especially when I have them on all day long!

  14. Kathleen Conner
    August 12, 2011, 11:01 am

    I’m most impressed with the technology of Costa Del Mar sunglasses because I’d never realized that there was such a big difference between quality sunglasses and sunglasses you pick up at Target.
    I want a pair of 580 sunglasses to protect my eyes. I was on a trip a while ago, and lost my sunglasses. After picking up a cheap pair at a beach-stand, I “burnt” my eyes, and they’ve always been a little sensitive after that.
    Polycarbonate lenses are my preferred choice, because I don’t like the weight of glass lenses.

  15. Ken
    August 12, 2011, 10:23 am

    I work for a medical device company that manufactures all product right here in the USA. I love that Costa does the same. I had a pair of Costa’s for years and recently lost them on a trip to the Bronx zoo with my daughter. I need a quality pair of shades to accompany me on my hikes, surf, and outdoor adventures. I’m all about the Poly construction to be able to wear them for all occasions.

  16. Brenda
    August 12, 2011, 9:27 am

    Those look like awesome sun glasses. And what makes them better is that they are made in the US.

  17. Ron
    August 12, 2011, 9:24 am

    Rather than say what I would do if I had a pair of these glasses, I can speak first hand about the Costa 580 lenses. They are incredible. Over the years I have owned some pretty high end sunglasses, including Maui Jim’s, Revo’s, and Vuarnet’s (back when they were the best). When it came time for a new pair recently, I did extensive research to determine who offered the current state of the art polarized lenses, with frames that are rugged and stylistically appealing to me. I decided on the Costa Fisch with blue 580 glass lenses, and boy did I make the right choice. The clarity, contrast and color accuracy are stunning. I could spend several consecutive full days outdoors in intense sunlight without eye fatigue. Whether in the mountains, on the water, or in the Afghanistan desert I felt like I had almost superhuman vision – certainly better than my jealous companions. No question the glass lenses were heavier than polycarbonate, but it was worth it to me for the scratch resistance and overall durability. Sadly I would not be able to truly put the durability to the test, as my son “borrowed” them (unauthorized by me) to take to the lake with his friends. They never made it back home. My son is grounded for the rest of his life, and any other sunglasses I try just pale in comparison.

  18. Anne
    August 12, 2011, 9:04 am

    Sweet shades!

  19. dan clague
    August 12, 2011, 9:00 am

    Very impressed they are made in the US. I am always looking for good glasses for fishing(both salt and fresh). I think glass is the material that will work best.

  20. Christopher L.
    August 12, 2011, 8:57 am

    1) An exceptional amount of engineering went into the design of these optics.
    2) The lenses in the 580 series reduces eye strain by lowering the light in the yellow spectrum.
    3) I am very active outdoors & around water, so I would probably want poly because of it’s light weight and the protective benefits of shatter resistance. Also looking for a low light transmission rate as well as polarized lenses or anti-reflective coating to reduce glare. Looking for a wrap around design with gray lenses because they distort color perception the least. Thanks for looking at my wish list-

  21. Karen Landis
    August 12, 2011, 8:55 am

    As an avid hiker, backpacker, and trail runner these glasses sound scientifically awesome. To be honest, I am not a huge science person, so that aside…they look great and sound like just what I like! I am impressed with the promise of clarity which is very important when I am trying to navigate rocks and tree roots on the trail. And the lighter weight poly lenses sound just right for me! Would love to try a pair!

  22. August 12, 2011, 8:46 am

    These look great. I am a runner and kayaker and have struggled to find a pair of sunglasses that work for me. They would protect me, grip even when I glisten, prevent eye strain and not ruin the beautiful view. I am impressed by the patented technology (and how well it is explained!). A pair of Howler Sunglasses in Driftwood would be my first choice!

  23. Parker E
    August 12, 2011, 8:38 am

    1) Costa impresses me because they have taken the effort to improve sunglasses technology, to the point where they have a competitive advantage over others. I don’t think any other sunglass manufacturer can say that they effectively block out the 580nm yellow range. Their 580 technology makes these sunglasses especially appealing.
    2) I haven’t yet had a pair of real sunglasses so to speak (having just gotten contacts), so these would be my very first pair. Costa would be a great way to start.
    3) I think the polycarbonate material would be best suited for me (outdoor activities).

  24. August 12, 2011, 8:22 am

    1) What impresses me most about Costa Del Mar Sunglasses is their patented technology that creates a chemical reaction inside the lens that reduces the color yellow (which strains the eye) and enhances RGB.
    2) I’ve recently picked up fly fishing here in the streams of Colorado and have become obsessed. A new pair of 580s would save me some loot and give me a serious edge in spotting out rainbows (trout).
    3) I would chose the silver mirror lenses as I need them for the varying light conditions that result as the sun moves across the canyons I fish in.


  25. August 12, 2011, 8:06 am

    Looking at this article, so many things struck me as impressive about this amazing brand and their products. Having tried many different polarized glasses, I have not had one pair that can do what Costa Del Mar states. The amazing ability for the 580 lenses to create a chemical reaction that reduces yellow light and enhances green a red is highly impressive. This reaction is completely unique to Costa Del Mar, and the fact that no other brand has the ability to even create this important reaction within lenses is extremely impressive. Being an avid hiker, kayaker, biker, rock climber, runner, and adventurist, an amazing pair of glasses that protect my eyes while giving me beautiful quality of vision is vital for my performance. To be able to customize your glasses so that they will fit your every needs is something impressive to me, as I am often disappointed to find that either the glasses I love don’t fit me right, or do not protect my eyes while being in varying weather and light conditions. I currently have some polarized glasses that are alright, but the color is off, and unfortunately, they do not stay on my face while doing activities such as steep hiking and climbing. A pair of polycarbonate lenses would meet the specifications I need while doing outdoor activities. The light material seems to be great for the activities I do as there is always a high risk of having a high impact accident. The light polycarbonate lenses would provide me with the proper protection for my adventures, as well as giving me the peace of mind that they are ready for my high impact activities to come.

  26. August 12, 2011, 8:01 am

    1) What impresses me most is not just the science that goes into Costa glasses, but the willingness and ability to explain that science to consumers. I never heard about the problems seeing the color yellow.
    2) Why wouldn’t I want a pair of Costa Del Mar glasses? I’m curious to test them out in different conditions and see if what you’re saying here holds up. Plus, I have cataracts that I don’t want to grow, so I’m always looking for the best shades on the market to protect my eyes without emptying my pocket.
    3) The 580 lenses are best for me due to cataracts and I like to spend a lot of time outdoors. I’m torn between the 580 Copper Glass for driving/everyday and the 580 Copper or Amber Poly for biking, but I might have to choose driving–that’s where I find glare to be most troublesome.

    I hope you pick me for the free pair. I’d blog about my experience with the glasses compared to the information you present here.

  27. Joey O'Neill
    August 12, 2011, 7:37 am

    I found the chemical engineering used in these lenses to be extremely impressive. I’m currently a college student at the University of Connecticut and I spend summers life guarding, my friends and I spend a lot on sunglasses. I think that a poly lens would work best for me because my glasses are constantly dropped from the chair onto the deck or into the water. I could see myself using these on the mountain while skiing, at the pool, on sailing or canoeing trips. These look like some great glasses and I’d love to own a pair.

  28. Shawn V
    August 12, 2011, 7:37 am

    I borrowed my friends while Tarpon fishing in Cape Coral, FL. They were the best glasses I have ever worn. The biggest thing that impressed me was the clarity of the lens and how well i could see out of them. They were brillant!! I would love a pair because they are made in the US which is huge and they are the best glasses I have ever worn. I would like the Zane or Corbina Tortoise with either the Blue Mirror, Green Mirror, or Copper Lens. And If I am lucky enough to win a pair I will wear them EVERYWHERE so people will see them on me. And I will look good!!

  29. Dave Knapp
    August 12, 2011, 7:24 am

    1) I’m impressed with the Costa engineering that went into designing these optics. 2) I could use a pair to help keep my vision sharp in the cockpit when flying, or on the trail while out hiking or camping…come to think of it, just about anything that requires me to be able to see well outdoors! 3) I’d need prescription lenses, so probably gray glass (gotta keep the color cast neutral for photography!)….

  30. Stacey Elliott
    August 12, 2011, 7:24 am

    1) I am impressed that Costa Del Mar Sunglasses has taken it a step further in a mission to provide superior sunglasses. With their patented technology to protect our eyesight.
    2)I drive a lot, under a lot of condition, in addition I am always outside and always want the best to protect my eyes.
    3) I would chose the glass copper lens, because I drive everyday. I have considered trying the glass blue, but drive more than I am on the water.
    Thank you!!

  31. Matthew Solmo
    August 12, 2011, 7:24 am

    I wonder if they fit my head. For some reason most sun glasses just don’t fit me right.

  32. Andrew T
    August 12, 2011, 7:24 am

    These are really amazing — like having Photoshop built in to your sunglasses. Personally, I have sensitive eyes and most sunglasses still leave me squinting and pausing to rub my eyes. While clarity is always helpful, I think poly lenses are a better choice for this guy who has occasionally smashed his face out in the great outdoors.

  33. Chris A
    August 12, 2011, 7:23 am

    It’s great to see science applied to making a better sunglasses experience. I’d love to try these out!

  34. Matthew Solmo
    August 12, 2011, 7:23 am

    I wonder if they would fit my head. I have a hard time finding sun glasses that fit my head right.

  35. Laura
    August 12, 2011, 7:18 am

    I’m impressed that they’re made by hand in Florida! I lead an active lifestyle and have been known to partake in “activities that have a higher risk of smashing your face” – so definitely those poly lenses for me. I love the Isabela Black Coral but I bet I’d love them all. I kayak, hike, play volleyball and softball. Oh, and I’m doing the 90-miler Canoe Race in September, so these would come in reealllllyyyyyyyyyy perfectly for paddling 30 miles a day in the Adirondack sunshine! Please, please, please, and thank you!

  36. Jamison
    August 12, 2011, 7:17 am

    As somebody who spends time kayaking on the river almost every day, these sound amazing. I’d kill for a pair (or leave a comment on here about them).

  37. Eric Covey
    August 12, 2011, 7:16 am

    1) I’m impressed with how much research has been done to create these glasses. 2) I want a pair of Costa 580s because I want a pair of sunglasses that will protect my eyes but not diminish the visual appeal of my outdoor adventures. Lastly 3) The Green Mirror (Copper) Glass would be the best material for me because it would so match the many streams and riverbeds I fish on!

  38. Ailar Barns
    August 12, 2011, 7:12 am

    1) I like Costa Del Mar’s products b/c of the quality they offer and 2) would like to have a pair of their glasses b/c I know that they will be comfortable to wear and protect my eyes/vision. 3) I have difficult time deciding b/w blue or gray lenses as both would be good to have and suitable for my lifestyle. Thanks!

  39. Sean M
    August 12, 2011, 7:10 am

    These look like an awesome pair of sunglasses, a good all around sports/ outdoors pair that i could take on various adventures

  40. Kristin H
    August 12, 2011, 7:06 am

    I am outside often, either photography, hiking and kayaking, I could use a pair of these and I would tell everyone where they could buy a pair for themselves. Free marketing

  41. Danielle P
    August 12, 2011, 7:05 am

    I love that the sunglasses are made in America.. and that the quality is fantastic.

  42. Matt
    August 12, 2011, 7:04 am

    I’ve always wanted a pair of these as they seem to be the lens of choice for boaters and fishermen.

  43. tawnie campbell
    July 30, 2011, 5:52 pm

    A pair of Corbina’s with the 580G green mirror lenses would be great while catching all the fish!

  44. Brett Nagle
    July 25, 2011, 11:29 am

    Real Glass lenses which enhance the RGB spectrum by producing a chemical reaction is amazing! The blue & green lenses look sick! Me want!!

  45. Zoe Smith
    July 25, 2011, 9:41 am

    I’ve always liked to have maximum choice of styles when buying sunglasses. I find the amount of available styles that Costa Del Mar offer to be way better than other brands. When you then have selections of colours of frames and types of lenses, the combinations and choices increase dramatically. Personally I’d choose the Costa Corbina glasses with black frames and Blue Mirror 580 glass lenses, Awsome

  46. Joey T
    July 25, 2011, 8:41 am

    I love Costa sunglasses due to the range of frame styles and colourways, and the vast array of lens option and colours available. It’s pretty much a mix and match to make up a pair of personalised sunglasses, with frames and lenses to suit your own personality and match the activities they might be used for.
    I’d love a pair of Costa’s Vela sunglasses with black/coral frames and green mirror 580 glass. Fantastic for general purpose use and while out in the mountains or on the coast.

  47. Pete Barr
    July 25, 2011, 8:18 am

    The Fantail model of glasses with matte black frames and Green Mirror 580G glass lenses are what I’d love to own.
    Living on the coast we regularly hike sections of the Coastal Path, do walks on the beach and along riverbanks and lakesides.
    Beside looking good, the sunglasses are ideal for wearing near water, and perfect for everyday use anywhere.

  48. Jenny Y.
    July 25, 2011, 7:36 am

    It’s pretty amazing how much science and thought goes into Costa Del Mar’s sunglasses. Our eyes are so crucial to movement; I’m very impressed by the thoroughness of these sunglasses and the classic style. I’d love a pair of these for hiking and beach volleyball – good looking and functional! Would prefer the polycarbonate since I’m a klutz.

  49. Gillian Smith
    July 25, 2011, 5:19 am

    The Black/Coral womens Isabella sunglasses look functional and effective. I need a new pair for normal day to day wear – nothing technical, fancy, hi-spec or outlandish as a fashion statement. So the Isabella’s look perfect for my needs.

  50. Jay Turner
    July 25, 2011, 5:10 am

    I just love the stylish and traditional look of the Costa Del Mar Corbina Tortoise Blue Mirror’s. I like the design, lens colour and specification of the sunglasses, and they are just what I need for my everyday use, and driving, hiking and mountaineering. I’ve always preferred glass lenses because I believe it gives better optical clarity, although I’m sure that science might show different.

  51. Ken Y.
    July 23, 2011, 11:14 am

    First time I tried a pair of Costa Del Mar I was impressed with the clarity. This company spends $$ in R&D not like other brands. I would love to win a pair of Corbina Tortoise Blue Mirror. It would serve my purpose for water activities and daily walking around Boston.

  52. AlisonB
    July 23, 2011, 8:34 am

    The women’s Isabela Sunglasses (Black/Coral) look great. They’d look better if I was wearing them.

  53. Joshua
    July 23, 2011, 5:28 am

    I’d love a pair of the Corbina Tortoise Blue Mirror glasses, love em.

  54. Joss Pentland
    July 23, 2011, 4:34 am

    I really like the look of the Corbina Tortoise Blue Mirror sunglasses (glass). Perfect for trips and walks in the mountains and stylish enough for everyday wear.

  55. Carol Wilkie
    July 22, 2011, 7:34 pm

    The glasses look great. Today my husband lost a great pair of Smith sunglasses while body surfing the waves on Lake Ontario. We searched for a long time, but no luck. He would love a new pair to replace the ones at the bottom of the Lake!

  56. Brad Blickenstaff
    July 22, 2011, 5:32 pm

    I’m a Tactical Coxswain in the US Coast Guard and wear Costas everyday. After buying and wearing the other major brands, Costas are the only sunglasses I will wear, period.

  57. Gail
    July 22, 2011, 1:41 pm

    Wow, these glasses are totally cool and look great! I’d love to win a pair of the polycarbonate ones to take with me when I climb, er, attempt to climb Kili in two months. I may not be able to breath well at the summit, but these will allow me to see clearly!

  58. Andy D
    July 22, 2011, 12:38 pm

    I Love the fact they have a polycarbonate version and can get prescription lenses for them these are sleeker then the ones they sell at the eye doc.

  59. amber
    July 22, 2011, 11:47 am

    The glasses look incredible and multifunctional. I could see them on my husband since he is looking for really nice glasses and his last pair were stolen out of his car a few weeks ago.

  60. Sonya C
    July 22, 2011, 11:07 am

    Love the fact they have a polycarbonate version and can get prescription lenses for them.

  61. Kate
    July 22, 2011, 10:16 am

    I love the look of the Isabela Black Coral sunglasses, preferably in polycarbonate but I expect they’re just a good in glass

  62. July 22, 2011, 10:08 am

    I like the looks and functionality of the COSTA DEL MAR Maya or Isabela.

  63. Noel Vigue
    July 22, 2011, 10:01 am

    These sound perfect! I lost my pair in Yosemite hiking. But I really need them for mtn biking. Too many bugs, rocks, branches and debris flying around. Gotta look good and be safe.

  64. Sonya
    July 22, 2011, 9:48 am

    Costa Del Mar makes a great product.

  65. Jason
    July 22, 2011, 9:38 am

    I’ve been wanting a pair of Costa’s for a while now. The clarity is top notch.

  66. Marijo Player
    July 22, 2011, 9:22 am

    I’d like the polycarbonate version, my last pair got sat on in the car and broken. I think these shades look great

  67. John Turner
    July 22, 2011, 9:18 am

    They look stylish, and I’d like to try a pair

  68. Ed Smith
    July 22, 2011, 9:12 am

    very cool..

  69. Tom
    July 22, 2011, 8:46 am

    These would kick @$$ on the trails and road!

  70. Mil
    July 22, 2011, 8:45 am

    These seem great! So much info and thought was put into creating these! Woo Hoo! Would love to try a pair!

  71. Patrick Nolles
    July 22, 2011, 8:43 am

    Seems Costa Del Mar made a smart move pairing with EMS to expand their brand, I’m already anxious to check these out first hand!

  72. Janet
    July 22, 2011, 8:41 am

    Scratch resistance and a really clean, clear view are top on my wish list for sunglasses. Sounds like Costa glass lens would be my preference.

  73. Keith
    July 22, 2011, 8:40 am

    I lost my sunglasses on a backpacking trip last summer and still haven’t replaced them.

  74. patrick
    July 22, 2011, 8:29 am

    I need a pair of shades that preform as good as i do when i am out being radical!

  75. July 22, 2011, 8:26 am

    I’d love to win these shades to give myself every competitive edge I can get.

    I’m a hiker, biker, climber, frisbee player and runner. I’m also deaf, which means I rely heavily on other senses like sight to keep up and get ahead. I only have a dinky pair of $10 sun glasses right now.

    I used to own a nice pair of Oakleys but they disappeared sometime somewhere (stolen I bet) but regardless I could sure use an upgrade.

    EMS rocks, keep up the good work.

  76. T
    July 22, 2011, 8:21 am

    I would love to have a Polycarbonate pair! These sound like they would be perfect for baseball and softball! I need a pair that works better than what I have! Thanks for the opportunity to try to win these!

  77. GL
    July 22, 2011, 8:18 am

    Thanks for the lesson on wavelength and Costa lenses. Will check them out next time I’m at EMS!

  78. July 22, 2011, 8:16 am

    I work all week on peoples roofs, its wicked sunny up there. and on the weekend I hike the mountains, and its wicked sunny up there too. A great pair of sun glasses is definitely a must, unfortunately, I busted my last pair when they fell off a 3 story roof and exploded. Sure sucks being without a trusty pair of glasses.

  79. July 22, 2011, 8:13 am

    I need a pair so I have some sporty glasses for my 22-mile hike on the Kalalau Trail in Kauai in September.

  80. jon hill
    July 22, 2011, 8:09 am

    i like sunshine but my eyeballs to not so i need some finefine green lens specs.

  81. Leigh
    July 22, 2011, 8:09 am

    I would wear them everywhere I go especially when on my SUP.

  82. Sarah
    July 22, 2011, 8:04 am

    Boy, I could sure use a pair of these on long summer runs!

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