The KOO Cosmo Glasses are a functional and stylish choice for anyone who loves being outdoors. These glasses feature a Grimland polymer frame which is lightweight and flexible. This gives you amazing comfort and durability. Polycarbonate polarized lenses made by Zeiss are also resistant to damage while offering an excellent field of vision. They reduce glare so you can see clearly in the brightest conditions. A grippy nosepiece and temples prevent slipping when you sweat. They are the perfect glasses for the outdoor enthusiast, perfect for hikes, golf, a day on the water, a nice bike ride, or the beach. The KOO Cosmo Glasses look good and feel even better.