The Stance Mariner St Face Mask is a non-medical grade mask that brings a little style to your wardrobe! It is made of the premium Butter Blend™ fabric to maximize your comfort. Masks are one size fits most, washable and reversible. Please clean between each wear. For each mask purchased, Stance will donate a pair of socks to medical frontline workers through our 'Stance for Scrubs' initiative. Keep covered, comfortably.