COMFORTABLE TO WEAR: Motorcycle Goggles Mask easy to adjust,the non-slip strap fits any size of head,the breathable and hypoallergenic foam adds exclusive comfort while you wear them. PROFESSIONAL PROTECTION: Motorcycle Goggles Mask Detachable UV Protection, Windproof & Waterproof anti dust,comfortable wide tight band and detachable goggles,it fits closely to your face around your eyes. Anti-fog measures: Many customers feedback fogging. I checked a lot of information on the Internet and learned that this is a physical phenomenon caused by the temperature difference. Some people say that the lens can be wiped with a small amount of cleanser essence, evenly applied, this can effectively prevent fogging (please Note that this process does not require water). APPLICATION: Motorcycle goggles Used for outdoor activities, PC Lens Provides You with High Transparency, Arc Design Provides You with Broader Vision.High consistency cotton has great exhaust ventilation for a comfortably wearing. Breathable mouth filter and holes provide better air permeability.