The Z-Coast line of Raze Eyewear sunglasses are the ones you most want to take out on the water with you. For this, there are many reasons. One of the most important ones? The fact that they FLOAT! So when you're out on the water, whether you're boating, fishing, kayaking, or paddle-boarding, if these shades happen to fall off, you can just grab them right out of the water! These are a full frame style made with the highest grade of TR90 available, injected with rubber at the ears and nose to stay planted. Step on them, smash them, or sit on them. They won't break. The UV400 lenses protect your peepers from the harmful UVA and UVB rays of the sun. Impact-resistant and shatterproof polycarbonate lenses guarantee durability and a long-lasting sunglasses life. These glasses feature polarized lenses that eliminate distracting glare from surfaces like metal, water, and snow...and they enhance your clarity of vision, too. Lenses are also High Definition (HD), making them perfect for brightening your line of vision and improving definition, especially in low-light conditions.