Cycling Protective Balaclava Full Face Motorcycle Skull Mask Length about 40cm / 16" , total width at neck opening 25cm/ 10"unstretched) 100% polyester , make of breathable, soft and thin material ,stretched Skin-tight design keeps the face mask from flapping in the wind and loosening up Perfect for spring, summer and fall riding, bikers love them One size fits most adults and teens