OluKai men’s cloth face masks are crafted for personal comfort and protection, using the same quality materials we use in constructing our shoes. Triple-layered with a pocket inside to allow you to insert a filter. We have added binding around the edge to create a secure fit around your face. Fully washable and sold in a 2-pack for easy; wash-one-wear-one use. Not for medical use. All face masks are final sale and cannot be returned.