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  • Kaenon - Hard Kore Polarized Sunglasses - JM10-MTBLK/Coastal Green Mirror
  • Kaenon - Hard Kore Polarized Sunglasses - JM10 Matte Black/Copper 28
  • Kaenon - Hard Kore Polarized Sunglasses - JM10 Matte Black/Yellow 35
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  • Kaenon - Hard Kore Polarized Sunglasses - JM10-MTBLK/Coastal Green Mirror
  • Kaenon - Hard Kore Polarized Sunglasses - JM10 Matte Black/Copper 28
  • Kaenon - Hard Kore Polarized Sunglasses - JM10 Matte Black/Yellow 35

Kaenon Hard Kore Polarized Sunglasses


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    • JM10-MTBLK/Coastal Green Mirror, Regular
    • JM10 Matte Black/Copper 28, Regular
    • JM10 Matte Black/Yellow 35, Regular

    18 Reviews


    From the trail to the beach, the Kaenon Hard Kore Sunglasses provide optimal fit and vision.

    The ultralight Hard Kore Sunglasses give you the clarity and protection of Kaenon's ground-breaking polarized SR-91 lens and a fit designed for active lifestyles. The SR-91 lens provides the durable lightweight strength of polycarbonate lenses and the clarity of a glass lens, giving you unparalleled feel and vision. Kaenon's Variflex rubber temple tips provide solid purchase on your head, which keeps the Hard Kore Sunglasses exactly where they need to be no matter how much you move, jog, or jump.

    Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

    • Item #KAN0012

    Tech Specs

    Kaenon SR-91

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Love 'em

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    These are my active pair of Kaenons (cycling, hiking, etc.). I wrote a bigger review on the Miramars but Kaenons are great glasses. I have a really big head and these fit well. I've owned them over a year and am extremely happy.

    silly name, serious sunnies

      I'll come right out and say it: the Hard Kore is not the most cleverly named, and it certainly lacks some of the refined sculpting and frame design that I've come to expect from sunnies at this price point. It even almost feels dated in both of those respects. However, there's something about the Hard Kore (ugh) that still feels refreshingly utilitarian -- a timeless sport-performance profile, if you will. It's pretty clear that Kaenon is putting all their eggs in the basket of optical performance, and luckily their SR-91 lenses deliver in spades. For me, having a contrast-enhancing lens that protects and cuts glare on sunny days but delivers perfect clarity on cloudy days is a huge win -- the C12 (copper, 12% light transmission) is the ultimate in all-day, all-sport versatility. Plus, its mirrored finish looks absolutely badass. No complaints on the fit or wearability - it's definitely a large wrap frame with beefy arms and big lenses. The rubber nose pieces and long rubber temple tips are more than adequate to keep things snug. Still, if you have a smaller mug, or just prefer smaller sunnies for sport, check out the also unfortunately named Soft Kore.

      * made in Italy, if you're into that sort of thing

      Really Enjoying the Kaenon's

        Bought the Kaenon Hard Kore sunglasses mainly for running. These are lightweight and have crystal clear lenses. The frames block the light from the side very well. I also like the fact there is no frame on the bottom of the lenses. This really opens up the field of view. I have the C12 lenses and find them a nice all-purpose lens. I had the C28 lenses and found they were not quite dark enough in normal sunny conditions. Would also recommend these glasses for biking, golf, or pretty much any sports activity.

        Love the Kaenon Hard Kore Sunglasses

          These sunglasses are great. I got the copper lenses and they are superb, especially for partly cloudy days. They have quickly replaced my Maui Jims as my favorite sunglasses. Great clarity - love those lenses.

          Alex Grant 2 time winner Point to Point in Park City Utah

          Check out the Press Release below from SNEWS - look at what the top endurance Mt. Bikers are wearing for their sunglasses. There is NOTHING clearer or more precise on the market than Kaenon's SR-91 lenses. You have got to try them to understand.

          Alex Grant 2 time winner Point to Point in Park City Utah

          SNEWS Press Release - HUGE for Kaenon and Hard Kore

            Kaenon Polarized Takes on Park City Point 2 Point MTB Race

            Posted: 08/25/2011 In Category: Outdoor Trade Shows / Events

            Industry News Release Written By: Tyler Weaver

            Newport Beach, CA — August 25, 2011 — Kaenon Polarized is an official sponsor of the 2011 Park City Point 2 Point mountain bike race. Additionally, Kaenon Polarized sponsored rider, Alex Grant, the winner of the event the past two years, and fellow team rider Marshall Eames, will compete in the 78-mile event on September 3, that will travel between The Canyons, Park City Mountain Resort and Deer Valley. Never crossing the same section of trail twice, the course rises over 14,000 feet, pushing athletes to their physical limits.

            “The Point 2 Point is unique in that it is almost all single-track,” said Grant. “That makes for a tough day in the saddle because you need to be mentally focused the whole time in order to navigate the technical terrain.”

            Proper eyewear is a necessity as riders traverse the course. Alex Grant and Marshall Eames wear Kaenon Polarized sunglasses due to the superior optical clarity and protection offered by the patented SR-91 polarized lenses. Preferred by most mountain bikers, the Copper 28 and 50 lens tints (allowing 28% and 50% of essential light to the eye) let riders tune their vision depending on light conditions. Kaenon's collection of Kore Performance sunglasses are the perfect choice for biking in any condition, reducing eye fatigue when riding in and out of shadows, protecting against plants and debris, enhancing contrast when riding on trails, and allowing for increased visual awareness at high speeds.

            “Riding single-track for seven hours without stopping requires a lot of focused vision,” said Grant. “You need your eyes to be protected and relaxed rather than strained. Kaenon's ultra-efficient polarized lens does that better than any other lens out there.”

            About Kaenon Polarized
            Since 2001, Kaenon Polarized has continued in its mission to provide elite athletes and active lifestyle enthusiasts with unmatched polarized optics and high-performance frames, all with superior fit and luxurious style. With proprietary and revolutionary SR-91 polarized lenses, Kaenon Polarized continues to push the boundaries of active optics with award-winning performance sunglass styles, all available in Single Vision and Freestyle Progressive prescription.

            Great Biking Glassses

              I have used the Hard Kore sunglasses for a few seasons as my main biking sunglasses. They breath well and have no frame on the bottom which allows excellent visibility for cycling. These shades stay on well and are comfortable.

              Bottom line: Great biking shades that I highly recommend.

              My New Favorites

                After 10 years in several pairs of Maui Jims, I purchased a pair of Hard Kore G12's. The clarity is amazing and the frames are lightweight and comfortable. The gray tint doesn't overdim your vision and in fact, you forget you are wearing them. These are easily my favorite sunglasses.

                Nice, but large

                  I have a skinny head (6-7/8) and these are way to big for my head that I had to return them. They did look pretty cool, but I could put my thumb between my temple and the glasses they were so wide. If you're someone that has a problem like myself don't get these glasses and go get some polarized Arnettes for half the price.

                  Killer shades

                    These are fantastic sunglasses. The SR-91 lenses are crystal clear, and the polarization is excellent. These are great glasses when polarization is a must (flyfishing, being on the water or snow, or driving on wet roads).

                    I own the Hard Kore and also the Kore, and I find myself wearing the Hard Kore more often. The Kore are also great sunglasses, but the lens is bigger. While the bigger lens does a slightly better job of blocking light reflecting from below, they also have less air circulation, and are more prone to fog up. The Hard Kore, OTOH, allows a little better air flow, yet still provides excellent coverage. But by no means is the Hard Kore a small or narrow lens; actually, it's closer to the size of other "normal" shades. As should be evident by the picture, these shades do a great job of blocking lateral light, yet they are much lighter than they appear. Of my (too many) sunglasses, these are hands-down my favorites.


                      Functional and fashionable frame - the first 'shield' style that you can wear on and OFF the bike. Cool looking and amazing optics. You can't find better lenses than these - worth every penny and then some. *also does NOT scratch easily at all so don't fret about wearing a high end sunglass on the bike!!!!

                      Golf Glasses

                        I ordered these glasses specifically for golf after watching Brian Gay win a tournament in June. These glasses did not improve my score - however, they have protected my eyes from the sun and wind while not having any distortion and really not even aware that they are on my head. Other glasses required always pushing them back up my nose and usually taking them off before each shot. Not these. They are great, of course they ought to be, and especially the "no frame" on the lower side allows for good vision while looking down at the ball, nothing in the way. A TV doctor said that you should protect your eyes, same as your skin while in the out of doors. Even at $200, I think this is a good buy.

                        Fantastic Sunglasses

                          I purchased the Kaenon Hard Core and Rhino Sunglasses after doing much research. I was concerned with purchasing the glasses without trying them. Back Country was very helpful with selection and suggested I order both and see which I prefer and return the other. They arrived, and both fit so well and were of such high quality, I decided to keep both. I bought the sunglasses for competitive sailing and plan to use the Rhino's on more moderate days and Hard Core on the days that really blow with lots of spray. The glasses fit tight, I have even used them without retainers. In a 60 km/h the spray was intense but the glasses shielded me perfectly without water residue. The polarized leneses are fantastic and enhance my ability to see the gusts and waves. Over all, I am thrilled with the products and the service of

                          Hard Kore Rocks

                            This is an incredible sunglass frame. The Hard Kore frame fits so well and w/ the open lens at the bottom is incredibly functional for any sport. The lenses are outstanding - like the comment below, they are truly like wearing nothing at all they are so clear and efficient. I forget that I am wearing glasses they are so comfortable. I own other brands but find myself grabbing my Kaenons all the time for everything, they are the best.

                            I have tried the C12 lense and like it. ...

                            I have tried the C12 lense and like it. Someone has suggested I might like the G28 better for all arround use. Any one have experience with these lenses?


                            I've used them. They are definitely "brighter," but they still reduce glare like you'd expect from Kaenon's lenses. On cloudy days I prefer G28, but sometimes I'll also wear them during bright sunny days, especially during non-mid-day activities when the sun isn't as intense. They've worked great for me. Hope that helps!

                            Hi, I wear perscription glasses, can I...

                            Hi, I wear perscription glasses, can I order the same per. for your glasses?

                            Hi John. Kaenon does make SR-91 prescription lenses, but my understanding is that you can't order them directly (from or even from Kaenon), but instead you can get them through some eye doctors. More information can be found here:

                            What is the difference between a c12 and...

                            What is the difference between a c12 and a c28 lense?

                            To break it down... C means copper in color, a lens tint that offers increased contrast. 12 is the percent amount of visible light it lets through the lens, perfect for full sun because it blocks a lot of light.So that makes C28 a copper colored lens that allows 28 percent of the visible light through - good for lower light conditions than full sun.I have worn C28 in full sun, as the person above has, and found that although it doesn't block as much light as the C12, it is still extremely comfortable. They are both great lenses that offer great clarity, contrast and eye comfort. Whenever I wear either of them I always think "I wish my eyes always worked this good!"