Parisian Pet Step-In Dog Harness, Medium, Black Houndstooth Step In Harness Vest for easy snap on and off; Lightweight with Velcro closure Size: Medium Approx. Weight: 8-10 lbs. Back Length: 10 - 13 Inch Chest Girth: 12 - 14 Inch Neck Girth: 8 - 10 Inch