What the waterproof designation contributes
The official Rancher waterproof listing confirms the black/brown W10765 identity and waterproof leather construction. That makes it a more explicit wet-work choice than a Rancher title that does not include waterproofing. The feature should remain tied to the selected model rather than spread across every boot wearing the Rancher name.
The Western pull-on format is the other clear reason to consider it. A boot that slips on through a tall shaft avoids lace handling, but its opening cannot be tuned the way a lace-up can. The wearer’s preferred closure is therefore a more useful comparison than a generic claim about effortless comfort.
Compare style changes, then size changes
If you need a different shaft or opening, compare the Floorhand Wellington, the Groundbreaker Chelsea or a lace-up boot. Those choices alter the shape and coverage in ways that a size change does not. If this Rancher already matches the job and wearer, the 11 M selection is simply the ordering detail to confirm.
Do not substitute a size 12 because its product page has different descriptive language or a lower displayed price. Nor should the 8 M version be counted as a second type of waterproof Rancher. The three listings share the same core decision: a waterproof steel-toe Western pull-on in black/brown. Any additional claim about insulation, metatarsal protection or a particular repair construction needs exact-model evidence rather than an inference from the tall leather upper.