The Holiday Sweater is soft and warm. Your dog will feel as festive as they look in the over the head sweater with Pom Pom accessory on the hood. 100% acrylic and machine washable. Sizing: X-small: 8-10", Small: 10-14", Medium: 14-19", Large: 19-24", X-Large: 24-29" For sizing, measure from base of neck to base of tail.