Dog cooler with 3 layer cooling fabric, Keeps your pet cool in hot weather through natural evaporative cooling and heat reflection. EASY TO USE soak the vest in cold water, wring out excess water, strap to your dog cooling begins immediately Simply repeat the steps when you feel the vest needs to be recharged. Designed soft and lightweight material for all range movements, the dog cooling vest also helps UV protective, prevent the strong sunlight from hot summer, protect dog from sunburn, make dog feel like in cool swamp. EASY TO WEAR - Dog Cooling Vest designed with Abdominal buckle, easy to put on and take off, offer the best range of motion for the dog, make it a great candidate for highly active dogs. Size- This dog apparel is a great gift idea for your love pets in hot summer Please select the fit pet cool jacket according to the size chart described. Please make sure to measure the Chest, Neck girth and Back Length before selecting a size. Please allow sufficient room to slip two fingers between the measure tape and the dog's neck and chest girth.