Disney Minnie Mini Backpack for Girls Kids ~ Deluxe 12" Minnie Mouse School Bag. Deluxe Disney Minnie Backpack for Toddlers features adjustable shoulder straps, a zip closure compartment, and a top locker loop for hanging. Disney Minnie Toddler Backpack measures approximately 12" x 8" x 4" -- the perfect size kindergarten or preschool backpack for back to school. The Minnie Mouse-shaped backpack is sure to delight any fan of Disney! Officially licensed Disney Minnie Mouse school supplies products -- for girls.