SizingUpdated a year ago

The Rock Solid Collar ID is available in three sizes.

SMALL: 
fits neck sizes neck sizes 10.25" - 15"
collar width: 3/4"

MEDIUM/LARGE: 
fits neck sizes 14.5" - 22.75"
collar width: 1"

X-LARGE: 
fits neck sizes 18" - 28.5"
collar width: 1.25"