Mwill OTG Ski Goggles,for Men Women Adult,Skating Snowboard Eyewear Use Dual PC Uv Proof Lenses with Mirror Coating Anti-fog - Helmet Compatible with Extra Long Adjustable Strap[BLACK] WEAR OVER THE GLASSES:This is designed for people who WEAR GLASSES for visual acuity whilst skiing,and it provide extra rooms between the goggle and the glasses to prevent the glasses being pushed against the face. DUAL PC LENSES WITH ANTI-FOG:It uses a DOUBLE LAYERED LENS.It is made up of two separate lenses with a rubber to separate them.And ski goggle lenses are treated with an ANTI-FOG COATING to help protect against misting.A HYDROPHILIC CHEMICAL TREATMENT to the inside of the lenses can greatly reduce a goggles tendency to fog. SKI GOGGLE VENTlLATION:Goggle ventilation is crucial to help the CIRCULATION OF AIR within the goggle to REDUCE MISTING.Ventilation is at the top and bottom of the goggle and COVERED BY LIGHTWEIGHT FOAM that prevent the snow from entering the goggle. UV Protection:This ski goggles have 100% UV PROTECTION.UV intensity increases with altitude,and protecting your eyes from HARMFUL UV RAYS.It will prevent eye fatigue as well as damage to your retinas. TRIPLE-LAYER FOAM AND HELMET COMPATIBLE WITH EXTRA LONG ADJUSTABLE STRAP:It has FLEXIBLE FACE PLATE and TRIPLE-LAYER FACE FOAM for comfort.It can FIT SMOOTHLY on your face with the EXTRA LONG ADJUSTABLE STRAP around the helmet!