(Material) :- (1) Frame: TPU toughness(Soft rubber Frame) not easy to break. (2) Lens : Polycarbonate lens (Not Glass).- (Size) :- One size fits most (1) Len Frames Width: About 7.5 inch (2) Lens Frames Height: About 7.5 inch Lens + Mask Height: 7.1 inch- (Eliane Goggle Mask) :- Motorbike Open Face Goggles Mask is a windproof, anti-fog and anti-dust motorcycling goggles with a mouth filter and holes. It offers the best face protection from dust and other harmful elements and provides better air permeability.- (UV Protection) :- The lens is made of thick PC material, anti-UV and anti-glare.- (Windproof & Dustproof) :- Good visibility, No more dust, and insect getting into your face or eye.- (Adjustable Head Band) :- The headband length can be adjusted according to the head size so that the eyes don't have to bear burdens.- (Side Ventilation Hole) :- It allows the wind to blow in from both sides of the cheeks to improve overall ventilation.