To keep your dog warm during the winter season, this Dallas Dog Jack Frost Sweater is sure to be a pleaser! Jack Frost may try nipping at their nose but these very classy hand knitted sweaters will keep them cozy and warm. It is black with white snowflakes and red accents. 100% acrylic and machine washable. To determine size, measure from the base of the neck to the base of the tail. For dogs with a little more weight or fluff, go up a size.