Make Your Sweet Puppy Look Like The Dangerous Creature He Thinks He Is With This Shark Costume. This Adorable Dog Costume Features A Polyester Shark Dorsal Fin Attached To An Elastic Band With Velcro Clasps That Fits Around Your Dog'S Tummy. A Smaller Band Connects To The Dog'S Collar To Hold The Fin In Place. Xl/Xxl (Recommended For Dogs 32-185Lbs.) Fits Neck Sizes From 14-26 In, Chest 21-40 In, Back Length From 18 To 30 In.