The set includes a white cotton child sized chef apron and white cotton chef hat. Great for cooking or even doing artwork. The set is a 50/50 polyester cotton blend lightweight fabric. The kid's apron is one size fits all for ages 2-10 years old. The hats are adjustable with velcro, 22" circumference, and 10" tall. The aprons are adjustable at the waist and have a looped neck. The apron is up to 36" full length, 25" from chest to hemline, and up to 48" at the waist.