Product size composition

S size: M size collar+S size harness
M size: M size collar+M size harness
L size: L size collar+L size harness
XL size: XL size collar+XL size harness

Measurement Size for Collar

M size:
Girth: 13.5-16.5in, Width: 1.5in

L size:
Girth: 17-20.5in, Width: 1.5in

XL size:
Girth: 20-24in, Width: 1.5in

Measurement Size For Harness

S size:
Forebreast Girth: 15.7-26.8in, Chest Girth: 24.4-33.1in

M size:
Forebreast Girth: 24.4-31.5in, Chest Girth: 30.3-39in

L size:
Forebreast Girth: 26.8-41.3in, Chest Girth: 34.4-45.3in

XL size:
Forebreast Girth: 29.1-44.1in, Chest Girth: 36.6-48in

Full Adjustment Strip

Full Adjustment: Put on and take off this easy dog harness with 4 quick-release buckles with no hassle. 4 fully adjustable straps ( 2 Shoulder, 2 Chest ) allow a snug fit with maximum mobility.