Amazon.com : KastKing Alanta Polarized Sport Sunglasses 。?KEY FEATURES - Polarized lenses reduce glare - Impact resistant TAC lenses protect your eyes from flying objects - Lightweight, durable, and comfortable Grilamid frames – Anti-slip nose and temple pads - Block 100% of the harmful UVA and UVB rays ?OUTSTANDING LENSES – 1.0mm polarized lenses are comparable to the thickness you would find on much higher priced sports eyewear. Sunglasses help reduce glare caused by reflected light to improve vision and comfort. ?PREMIUM FRAMES – Made from the same Grilamid material commonly used in military and medical applications, sunglass frames are lightweight, extremely flexible, and heat and UV resistant. Grilamid frames are well known for their astounding strength, lightweight comfort, shape integrity, and impact resistance. This virtually indestructible ultra-lightweight and malleable material translates to a very comfortable fit and the tacky nose and temple pads prevent slipping.