Have you ever heard of a “cowboy” heel? A cowboy heel is narrow and angled.

A roper style heel is flat and more squared off.

Typical buckaroo cowboy boots have a tall shaft all the way up to knee in some cases whereas roper style boots have a shorter shaft ending about mid calf.

the other typical distinction in a roper style boot is the rounded toe

So you combine a flat square heel, a mid calf shaft or top, and a round toe and you have a typical roper style boot!