Trick or Treat! Let your little boy join in the fun this Halloween, with this Monsters University Sulley Monster Costume. The adorable plush jumpsuit has a detachable tail, a head cap with horns and even booties with little monster toes sticking out of them. This classic Halloween costume is made of polyester and comes in infant boys'

The Monsters University Mike Deluxe Toddler/Child Costume includes jumpsuit, overlay, 3D vacuform eye and hat. Does not include shoes. This is an officially licensed Disney Pixar

Trick or Treat! Let your little boy join in all the fun this Halloween with this super cute Monsters University Mike Costume. This costume is inspired by the new hit movie, Monsters University, and will be just as much of a hit at Halloween parties or trick-or-treating. This adorable plush Halloween costume has Mike's face and torso printed onto it, and the booties have little monster toes sticking out of them. It even comes with an MU hat for complete Halloween