Stance's non-medical grade face masks are made with Stance's premium Butter Blend™ fabric to maximize your comfort, while mitigating the spread of infectious diseases, like COVID-19. Masks are one size fits most, washable and reversible. Please clean between each wear. For each mask purchased, they will donate a pair of socks to medical frontline workers through Stance's 'Stance for Scrubs' initiative. Keep covered, comfortably.