Size Chart - Collars - Chelsea

To Fit Neck Width
X-Small 20 - 28cm 1.5cm
8" - 11"
 ⅝"
Small
 		26.5 - 34cm
 1.5cm
  10½" - 13½"
 ⅝"
Medium
 		33 - 40.6cm
 2cm
  13" to 16"
 1"
Large 40.6 - 51cm 2.4cm
16" - 20" 1"