A classically-styled sport frame for men & women thats packed full of technology. Adjustable hydrophilic nose pads & temple tips give the ultimate custom fit. Lens: Interchangeable lenses; the technology used in our Interchangeable lenses is exactly the same as that used in our regular fixed lenses. The difference is that each frame comes with three sets of easy-to-change lenses, in different shades & colours. This means that you can choose one frame that fits you best without being concerned with whether or not you chose the right lens colour for your activities. A zipper case & a lens carrying pouch is included, so you can pack your extra lenses when you head out on longer adventures. Polycarbonate is the extraordinarily durable thermoplastic thats used in bulletproof glass, riot shields & astronaut helmets. Its the ideal material for performance eyewear because of its high impact resistance, inherent UV protection & light weight. All of our lenses are made from polycarbonate. All of our lenses block 100% of UVA, UVB, & UVC rays, & harmful blue light to 400nm. These harmful rays are a leading cause of cataracts, skin cancer & wrinkles around the eyesall great reasons to block them out. All of our lenses are shatterproof, meaning they wont break up into dangerous little shards when impacted. An extremely strong impact may damage the lens, but it will never shatter. If astronauts trust this material to keep their heads from exploding while on a 17, 000 mph space walk, youll have nothing to worry about on your adventures, no matter how fast youre going. The lenses in all of our sunglasses are made by injecting molten polycarbonate into a mold that is specially shaped to eliminate distortion. This process makes the lenses optically correct, increasing comfort & minimizing eye fatigue. We apply a scratch-resistant coating to all of our lenses. Though this process makes the surface of the lens considerably harder than the base lens material, its impossible to make the lenses completely scratch proof (short of making them from diamonds) so please care for them properly as they may still scratch under certain conditions. Frame: TR90 Switzerl&. A Swiss technology, this thermoplastic is the material used in all of our sunglasses (with the exception of our metal frames). Its extreme flexibility, durability & light weight make it the perfect material for performance eyewear. Hydrophilic Nose Pads. Hydrophilic [anti-slip] nose pads are an important feature to look for in performance eyewear. Our hydrophilic material is so effective that it actually grips better when its wet exactly when its needed.