CS Cycling Unisex Mask Reversible Windproof Protective Balaclava Full Face Mask Facemask Headwear Motorcycle ATV Biker Bike Cycling QLL07 Multi-style 1.Length about 40cm / 16" , total width at neck opening 25cm/ 10cm unstretched 2.100% polyester , make of breathable, soft and thin material ,stretched 3.Skin-tight design keeps the face mask from flapping in the wind and loosening up 4.Suitable for climbing, running, cycling, motorcycling , boating, skating, skiing, surfing, hiking 5.One size fits most adults and teens