Harness Size Chart

 Size Neck Measurements Chest Measurements
XS 13.5 - 16 in 15.5 - 18 in
S 15.5 - 17.5 in 17 - 20 in
M 16 - 21 in 17.5 - 22 in
L 18 - 25.5 in 18 - 25.5 in
XL 24.5 - 29.5 in 27 - 34.5 in