Planet Dog Harness Size Chart
Small
Dimensions: Neck = 8" - 14", Chest = 16" - 26", Back T-Strap = 4"
Medium
Dimensions: Neck = 14" - 25", Chest = 22" - 34", Back T-Strap = 5.75"
Large
Dimensions: Neck = 18" - 37", Chest = 24" - 40", Back T-Strap = 6.25"