[STAY COOL] The layered construction is designed to keep your dog cool when the temperature rises. The outer layer reflects heat and promotes evaporation, while the middle layer absorbs and stores moisture for evaporation. [How to Use] The dog cooler is made of 3 layers of cooling fabric, soak it in cold water, wring it out, then place the cooling vest on your dog, the evaporative cooling principle, during the phase change from liquid water to water vapour, the temperature drops, the mesh material helps to absorb the water, and the middle absorbent cotton keeps the water away from your dog's skin. [EASY MOVEMENTWe consider the impact when the dog moves, so we use high quality fabric, the dog can move freely without tearing the cooling vest. [USE ANYWHEREDog cooling carrier vest allows dogs to play healthy and happy in hot summer, such as walking, training, climbing, etc. [MORE SIZES] This dog cooling vest is a great gift for your dog to help them drive away the heat. We offer a variety of sizes for dogs of different ages and sizes, including XS, S, M, L, XL, 2XL, 3XL.Please measure your pet to choose the right size before purchase.