AstroAI Ski Mask is made of superfine soft and comfortable polar fleece, which is thicker softer and lighter without any weird smells. It can ultimately protect you from cold wind dust sun's UV rays and any other nature's elements while keeping heat in. With this versatile windproof Balaclava, no need to worry about Skiing, Motorcycling, Running, Biking, Trekking, Mountain Climbing, Snowboarding, Airsoft paintball, Hunting, Tactical training, Cycling, and other outdoor activities even under 30℉. Besides, the breathable mesh fabric design for mouth part so that you can breathe freely, not worry about stuffy, and can help prevent fogging of glasses or sunglasses.<br />