These Olaf costumes are made from 100% polyester: a foam-backed minky body and a minky headpiece, both fiber-filled.
Typical sets include a plush top/waist piece, jersey-knit leggings, a minky headpiece/hood, hand covers or mittens, and shoe covers.
The costume uses soft-sculpted coal-style buttons (described as fiber-filled faux suede or soft-sculpted coal) and a soft-sculpted carrot nose attached to the hood.
The jersey-knit leggings use an elastic waistband. The minky shoe covers use elastic bands and hook-and-loop fasteners at the back to stay secured.
Yes — these costumes are described as officially licensed Disney Olaf products.