For little superheroes who need a quick and easy costume! Includes a muscle chest costume top and mask. Muscle chest top has a velcro back and elastic around the waist for a more comfortable fit. Mask is soft and comes with an elastic strap for a secure fit. 100% polyester (top) 100% polyurethane foam (mask) 100% polyethaline (muscle chest). Fits child small sizes 4-6. Care instructions: Hand wash cold water dry flat. Do not iron or bleach.