This winter cold-proof mask is made of superior quality cotton,is easy to clean,soft and very comfortable.The lining fabric is ideal to protect your mouth and face from dust,wind,cold,pollen, allergy,flu,fog and haze,vehicle exhaust,passive smoking etc.With fastener tape,you can easily adjust the mask tightness,which is suitable for most of size head.This mouth mask ideal for dust,germs,allergies,smoke,pollution,ash,pollen,crafts,gardening,travel,anonymity reusable and re-washable.Welcome to inquiry.