They aren't always tapered...each layer or "lift" is about a quarter inch thick. Most men's shoes up to one inch in heel height (four layers) will be straight. Some men's boots up to inch and a quarter ("10/8ths" in the Trade) will be straight although it is nearly "maker's choice" at this HH. But above that height any footwear with a straight heel will walk clunky simply because the back of the heel will strike the ground too far back (or too soon) and as the foot rolls to the ball the heel will slam down sort of like a horseshoe on a horse. Ideally we want sort of a rocker action of the foot during gait.
Truth to tell, it is not at all uncomfortable or unbalanced to taper a heel on a 18/8 heel to about the size of a quarter. Of course that's extreme but it works both functionally and aesthetically. Of course at that heel height, other physiological issues begin to crop up. but that's another story.
Then too, if the heel is made of stacked leather there is a weight factor. Cutting a taper in the heel also takes some of that weight away.
The ladies oxfords are, of course at 10/8th in heel height, so they can benefit from some refinement and they look daintier and prettier if they are tapered.
I tell you my favourite combination of colours ...and it would have looked good on this shoe but it is too commonplace around my household...is black and tan. Classic British country elegance.
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