High quality UP Resin material make the dirt bike sunglasses have a excellent toughness and resilience. The PC lenses are scratch resistant, windproof, dustproof, shatter-proof and UV protection.Extra long strap for better helmet compatibility and keep the snow goggles in place. Over the glass designed ski & snowboard goggles to fit small to medium size glasses. Design to fit both youth and adult. Non-slip and high elastic wide adjustable strap to accommodate any helmets and any sizes of head, fits goggle grip on helmets firmly. Soft sponge padding around the frame makes the riding goggles more comfortable, and helpful to ventilation and thermal dissipation, keep your eyes comfortable and anti-fog.