Made from soft stretch cotton, this reusable mask and headband set is custom designed with button hooks for the mask elastics to help alleviate the pain around your ears from wearing all day. Can be worn separately or as a set. The mask features a contour fit, two-layer design with adjustable elastic ear straps and an opening for a filter pocket (filter not included). Machine washable on cold. We recommend using our lingerie bag. Lay flat to dry. Please wash before first use. Store in our crown PVC pouch when not in use. One size fits all adults. Mask measures 7 1/4" x 4 3/4". Imported. Please note, these masks are not substitutes for medical-grade personal protective equipment.