Dog Weight relationship: M 4-5g; L 6-7g; XL 8-10g. Tips: To avoid size problems, please do not choose the size according to your usual size, but measure your neck circumference, chest circumference and length your pet’s back and choose the right size according to our size chart. For long-haired dogs, please buy a bigger one. Comfortable and breathable Soft fabric makes your dog feel more comfortable and warm during autumn and winter cold. Dog sweater Main material: 65% cotton 35% polyester, soft cotton material keeps your puppy warm. Every puppy expects to be favored by the owner, just like the dog’s sincerity to the owner, buy gifts for your dog.