Your pet will stay stylish and warm with a Worthy Dog sweater! The attached flannel plaid skirt provides a layered look without the fuss and the sleeveless, pullover-style design makes dressing quick and easy and keeps pups comfortable on the move. Made of 100% acrylic, these comfy double-knit sweaters feature a "button hole opening" in the back so that you can easily hook your pet's leash to their collar or harness.