The Ashley Fiolek Signature Series 2 piece kids playwear sets are made of flame resistant, breathable, light-weight 100% Polyester and feature sublimated graphics that will not fade or wash out as well as hi-memory cuffs and elastic waistband. Kids love these day and night. Tops can be worn to school or to play separately with a pair of jeans or together with the included matching pants at night. Machine wash.