Winter Dog Hoodie with Leash HoleABOUT SIZE: Please don't choose the size based on your usual size, measure your pet's chest girth in priority, and back length, get the right size based on KYEESE size chart. If your pet is still growing, or your pet has a stout body, please do size up. WARM AND BREATHABLE: Made of special air layer structure material, the fabric is soft and silky, which can effectively lock in body temperature and allow air circulation to avoid stuffiness. LONG