Versatile and warm, this vest can be worn easily over a little sweatshirt or by itself. The strong outer shell provides medium warmth on those brisk days. Extremely breathable. Belly touch tape closure. To determine the proper size, measure from the base of the neck to the base of the tail. If in-between sizes, choose the larger size. Also go up a size if your dog is stout or overweight. Machine Washable. Colors: Burgundy/Tan, Green/Tan, Navy/Light Blue Sizes: 12, 16, 20, 24, 28, 32