Durable & lightweight - polyester fabric, light weight, shark shape design. Adjustable hook and loop and buckle - The life jacket has a hook and loop around the waist and neck, and there are buckles in both places. The buckle can be adjusted and can be tightened or loosened as needed. Portable and safe handle - You Can Easily Put Dogs In or Out of Water. Easy to dry and clean. Suitable for putting dogs in the pool, beach and other scenes to enjoy summer fun in the water.