Costume Ski Masks. It's cold out. Get Warm and look cool. Each costume ski mask has been designed to fit the shape of your face to accentuate the outer design for an awesome 3d effect that will have you looking like your favorite character in no time. Each ski mask is super warm, keeping you protected from the elements and can be folded up and worn as a winter beanie. These masks are also perfect for bikers; Keep the wind out of your face! Just throw on your helmet and your riding in style!