Pet Festive Classic Fair Isle Sweater. Christmas sweaterPet Festive Classic Fair Isle Sweater. Navy This is a perfect piece for the holiday season. This comfy classic sweater is soft, stretchy and easy to move in. Your Furbaby will look absolutely perfect in the family picture this Holiday Season. Perfect for Small to Medium dogs. These Sweater Run Small so we recommend going up one size. Also the XXL is for a Medium size dog, not a Golden Retriever Perfect for Small to Medium size dogs, not a Golden