Premium indirect vent goggles with class 1 optical polycarbonate lenses, modern low profile design and panoramic lens, offering the wearer excellent optics and superior peripheral vision. Ultra soft TPR flange offers a superior comfort, low pressure fit and gives protection against Liquids and dusts. With innovative twin indirect vent system, rotatable strap buckle and adjustable strap, to ensure correct seal to the face. Premium K Armour coating offers maximum resistance to lens scratches, extending the life of the product. Premium N - RX-AF offers maximum resistance to fogging on both sides of the lens. Fits over medium size prescription spectacles. EN166: Lenses 1 BT 3 4 K N; Frame B 3 4.