Size:Medium With Rubie’s Costume Company, every member of the family can dress up all year long! Pet costume features caterpillar hoodie with a multicolored back and attached feet. Garment is 100% Polyester, stuffing is 100% polyester. Costume is hand-washable. 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.