Material is a bit stretchable, hence once size fits all
Reusable: This dust mask is washable and reusable. Wear this face mouth mask, you could be protected from dust,
Adjustable: Ear loops are stretchy so you can enlarge the size. One size fit most people, it suitable for adult, men and women.
Widely Used: This mouth mask is suitable for men and women. It is suitable for cycling, camping, running, travelling, mountain climbing and daily use.