Army Green Full Face Motorcycle Bicycle Skull Mask Snowmobile Neck Balaclava Hat 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