Frame Materials - These vintage helmet goggles are made from imported ABS raw materials, copper/black frame. Higher hardness surface and chemical resistance. Stronger elasticity brings less deformation or any brokenness. Lenses Materials - Our retro cycling goggles lenses are PC Lenses. The glass can be hardened, coated, anti-fog. After be hardened, the glasses are featured with excellent anti-impact and wear-proof functions; After being coated, the glassed can anti-impact, anti-scratch, and anti sunburn, etc. Sponge Frame - The frame sponge of these vintage motorcycle goggles is covered by corium, safely cling to the face. The soft and skin-friendly materials of pilot goggles avoid bringing any uncomfortable feeling to your face. Adjustable Elastic Head Band - The head strap of our bike goggles are 100% cotton, adjustable, non-slip, and high elastic head strap, which can be adapted to any size of head type. Professional Design - This kind of cycle goggles use optics design of the human body, featuring with good ventilation, wide vision and it can avoid strong winds, snow grains, mirage and all kinds of strong light. Use these vintage aviator pilot goggles to enjoy a happy outdoor life!