Easyboot Trail (and Trail Original / Old Mac's G2) size 4 converted to Scoot Boot Classic (Regular)

Sizing across brands only works through the millimetre band, never the number. Easyboot Trail (and Trail Original / Old Mac's G2) and Scoot Boot Classic (Regular) both publish in millimetres, so a Easyboot Trail (and Trail Original / Old Mac's G2) 4 (hoof length 125 to 130 mm) is matched by finding the Scoot Boot Classic (Regular) size that covers the same length.

The Trail's length and width bands step in 5 mm increments and overlap heavily, so several sizes can look right. Fit to width first on this rounder boot.

Scoot's own rule: if the hoof is 10 mm or more wider than it is long, size on the maximum width band, not the length. A round hoof can also take a Slim as a half size.