Please contact customer service to inform the size you need Comfortable and breathable This dog cooling vest is made of high-quality polyester fabric, comfortable, soft, breathable, skin-friendly, durable, machine washable, not easy to fade, can effectively prevent dogs from sunburn, keep Dogs are cool and comfortable. .Quick Cooling This pet cooling suit is made of special quick cooling fibers. You just need to add water and spread the water evenly on the vest, then it cools down by evaporating the water and digesting the heat through the mesh layer, then the comfortable inner layer transfers the cooling effect from the jacket to your dog. .SUITABLE FOR MULTIPLE OCCASIONS Cool dog coats are available in XS to XL sizes and are suitable for most dog breeds such as pugs, shiba, huskies, golden retrievers, poodles, border collies and more. Suitable for indoor and outdoor dog walking, interaction, climbing, sports, hiking and more. . Make your pet healthier Hot weather can easily cause symptoms like anxiety and loss of appetite. It is very important to cool and disperse the dog in time. Use this cooling vest to help your dog dissipate heat, stay cool and comfortable, and avoid adverse reactions caused by overheating. .Easy to use You just need to soak the vest in cold water for two minutes, then wring it dry until it doesn't drip, you can wear it on your pet to cool it down. When you feel your vest needs hydration, just spread the water evenly over the surface of the vest. . Notes on use: 1. The dosage will be soaked through2. Screw it until it does not drip before putting it on the pet3. After wearing for a long time, you can sprinkle water to maintain the effect4. Please use it with dog's owner SIZE: XS :CHEST: 36-60CM BACK:42CM NECK:37CM S: CHEST:46-64CM BACK:47CM NECK:44CM M: CHEST:50-78CM BACK:52CM NECK:54CM L: CHEST:64-90CM BACK:59CM NECK:66CM X: CHEST:70-98CM BACK:63CM NECK:70CM