Wakey Wakey Pet Pajamas available sizes 4 and 6

4: Collar: 16.5-16.9 in. Underarm: 22.4-22.8 in. Length: 16.1-16.5 in. Underside Length: 11-11.4 in 5: Collar: 20-20.5 in. Underarm: 26.4-26.8 in. Length: 18.5-18.9 in. Underside Length: 12.9-13.4 in 6: Collar: 20.5-20.9 in. Underarm: 30.3-30.7 in. Length: 24.4-24.8 in. Underside Length: 16.5-16.9 in