Zionor X4 Ski Snowboard Snow Goggles Magnet Dual Layers Lens Spherical Design Anti-Fog UV Protection Anti-Slip Strap for Men Women High Performance Anti-fog & UV Protection - Ski & snowboard goggles with unique anti-fogging treatment and 100% UV400 protection coating. Magnetic Lens Technology  8 magnets hold the lens tight and easy to be replaced for different terrains and light conditions when skiing and snowboarding. Spherical View and Smooth Venting  180+ degree panoramic view design for super clear vision and less visual interference. Optimized vent channels enhance air-flow and reduce fogging. More Safety and Solid - Ruggedized lens with ZIONOR special EDT (Enhanced Durability Tech) for better impact-resistance and protect skier and snowboarder. Customer Oriented Service - All ZIONOR snow goggles are designed for both men and women, we provide customer friendly 1 year warranty and swift response customer service. Anti-winds and keep you warm. Magnet quick lens-changing system for better lens swapping and cleaning. Anti-fog and two way venting for clear and clean vision. Comfortable triple-layer foam for face fitting. 100% UV400 Protection. PC lens + TPU frame for impact-resistance. Elastic strap for better helmet compatibility. VLT 0-8% - Suitable for sunny day with bright light. VLT 9-18% - Suitable for sunny to partly cloudy day. VLT 19-42% - Suitable for overcast, cloudy foggy day. VLT 43-79% - Suitable for low light conditions. VLT 80-99% - Suitable for dark night. Lens type: Spherical Detachable Lens: Yes UV400 Protection: Yes Anti-fog Coating: Yes Lens Material: PC Frame Material: TPU Lens Finish: Full REVO Magnet Lens: 8 Magnet Spots Ventilation: Two-way channel Recommended: Skiing/Snowboarding Outer Lens Material: PC Inner Lens Material: CP