Bolle Recoil B-20.3 polycarbonate lenses give sharp views and incredible impact protection. Plus its made from B88 nylon. So its lightweight (for a comfortable fit) and durable. Polarised lenses beat glare reflected by flat surfaces. Anti-fog coating stops liquid sticking to the lens for clear views. Carbo Glas coating stops scratches. Its temples and nose pads stop the frame from slipping off.