The Pet Life Argyle Knitted Dog Sweater Features a Knitted Fashion Argyle Pattern and a Comfortable Ribbed Dog Collar. This Trendy Dog Sweater Features a Leash-Slit Holder Above the Neck area. This Pet Sweater is Available in Multiple Sizes and Color Variations. Sizing Guide - From Back of Neck to Tail area ("In" Inches) 8" - EXTRA SMALL 10-12" - SMALL 14-16" - MEDIUM