[Quick Cooling] The cooling shirt for dogs is made of 3 layers of material and absorbs excess body heat through moisture evaporation to cool down, giving strong support for pets to stay cool outdoors. The outer layer can help evaporate and sun-proof, the middle layer absorbs and stores moisture and the waterproof inner layer wont soak your pets fur, thus maintaining a comfortable skin feel. [Detachable Ice Pocket] Our dog cooling vest is designed with a pocket at the dog back for storing ice pack.INC PACK NOT INCLUDED)(Only M, L, and XL vests have a pocket for placing the ice pack.) You can put the ice pack in the pocket to achieve an enhanced cooling effect and keep your dog cool during hot summer days. Enjoy maximum cooling comfort wherever your pet go. The pocket of hook and loop design is easy to take and put the ice pack. It is detachable and can be removed for cleaning. [Control Handle and D-ring] The cooling vest for dogs comes with soft handle on the top to provide better control for you, help to guide your dog. The back sturdy metal D-ring can distribute pulling pressure evenly to the whole body to prevent choking. [Reflective Strip for Safety] The reflective strip design on the cooling dog vest greatly enhances their dog's safety and reduces potential safety risks. Nylon Loop for light installation to provide extra safety and visibility. [Easy to Use] Soak the dog cooling vest harness in water. Wring out the excess water of the cool clothes. Put ice pack into the pocket. Put it into the fridge and freeze for 10 minutes. Put it on your dog. Note: If the dog has an upset stomach, it is not recommended to use ice pack to avoid catching a cold. [Adjustable & Multiple Sizes] The hidden buckles on both sides of the dog cooling jacket make it easy to put on and take off. Adjustable buckles on the neck and belly allow you to adjust it to fit your dog's body, keeping it snug and not easy to shift. Available in 4 sizes from S to XL to suit various breeds and sizes of dogs. Please measure your dog's back, chest, and neck before ordering and choose from the corresponding size chart.