This basketball costume is handmade with felt material with adjustable tie straps. And come with a Slam Dunk treat bag. The costumes are made in3 sizes one size fits all toddlers, one size fits all kids and one size fits all adults. Costume comes one size fits all for toddlers or one size fits all for kids. Ribbon straps tie to adjust size. The design of the costume makes the sizing very forgiving. Which is why I refer to sizing as on size fits all. In general here is the size range.... Infant ****see note below Toddler 24mo-5 Kid 5-12 Adult12 and up You will notice some overlay in sizing because a child who wears a 5 could wear either size and a child who wears a size 12 could also wear an adult size. ****I do make a smaller size than the toddler for infants. However, the design of the costume may or may not work for your infant. If you are interested in an infant costume please message me to discuss.