Your toddler will be the cutest Sulley ever in this Monsters University Sulley Kids Costume. It is so completely like the character, from the grey horns on the headpiece with that fluffy tuft of hair, to the jumpsuit with patches of purple. However, the real Sully is no comparison to your boy in terms of cuteness. This vivacious blue jumpsuit is made of faux fur. The tail and headpiece are detachable. The costume is made of polyester and faux fur (except for decorations). Sizes available (toddler) are 2T, 3/4T and 4-6T. The total package includes the jumpsuit, tail and headpiece. It does not include socks.