Bolle Junior Crown Sunglasses, TNS, Shiny White/Bubbles Anti-Slip Nose Piece Anti-Slip Temples Light yet offer good shock resistance 6/8 base. Offers better periphery vision Optical Class 1 with 100% UV Protection - Protection from UVA, B and C rays Finest grade nylon is utilized in our frames to create lightweight, incredibly durable and ultimately flexible frames The only prescription program which ensures optimum precision, comfort and frame balance for sports sunglasses Our polycarbonate lenses are 20 times more impact resistant than glass and three times lighter