Product instruction Specification: Higher hardened surface, good anti-chemical; and the stronger elasticity bring less deformation or any broken Material: PC Lens Specification: the glass can be hardened, coated, anti-fog. After be hardened, the glass have good anti- impact and anti-scratch; after be coated, the glass have good anti- impact and anti-scratch and 100% anti-UV, ext. Sponge Frame Material: sponge covered by corium Specialty: safely cling to face, the softly & exquisite material void to bring any unsuitable feeling to face. silicone strap Material: 100% cotton, high elastic Specialty: adjustable non-slip (or common high elastic strap; can be adapted to any size of head-wear Use optics design of the human body, have good exhaust ventilation, widely vision and can avoid strong winds, snow grains, mirage and all kind of strong light Certificate: CE certificate Package includes: 1* Cycling Goggles