READ THE RUBIE'S PET SIZE CHART and WATCH THE SIZING INSTRUCTION VIDEO, do not select size based on breed; consider costume style and animal shape before ordering. Now your favorite four-legged member of the family can join the fun. With a pet costume from Rubies, they'll be ready for parades, parties, or just having fun. Rubies is the world's largest costume manufacturer in the world - of course they'd remember your pet.