With Rubie's costume Company, every member of the family can dress up all year long! Officially licensed Scooby Doo! Character pet costume features Step-In shirt with cape and headpiece is Scooby Doo head. 100% polyester, hand-washable costume. Rubie's costume Company has been creating costumes since 1950, of course they'd remember your pet. Please note: different breeds have different proportions. Rubie's Pet Shop Boutique suggests going a size up if you are unsure of what size to get.