A wide-fit customer has usually been failed several times before they find you. They have bought a larger size to get more width and had the heel slip. They have been told a style comes in wide and found it barely different. They have measured nothing because nobody has ever shown them how. That history is why this category converts far better than general footwear when the site is honest, and far worse when it is vague.
We work with wide-fit shoe stores that already sell online: retailers carrying several fittings across every size, brands built entirely on a wider last, and stores serving the extra-wide end where almost nobody competes. The plan is built around the awkward realities of the category. Width letters mean different things in different systems and different brands. The stock that sells fastest is the depth most stores refuse to carry. And a customer who finally finds shoes that fit does not go looking again.
The question underneath every page view is whether this shoe is genuinely wide or simply generous. Those are not the same thing, and this shopper knows it. A shoe built on a wider last has more room across the ball of the foot and a matching increase through the toe box and the instep. A standard shoe described as roomy does not.
The second question is which of your widths corresponds to what they already own. Width systems disagree. British fittings run in letters that are not the same as American widths, and a manufacturer's idea of extra wide is not a fixed measurement. A store that carries several brands is carrying several definitions of the same word, and the shopper is left to reconcile them.
The third is depth of stock. This customer has been told a hundred times that their fitting is out of stock in the style they wanted. Showing which fittings you hold across a whole size run is a stronger selling point than any offer.
Beyond width, this shopper often needs volume as well as breadth, meaning room over the instep rather than just across the ball. Adjustable fastenings, removable footbeds and stretch panels solve that, and describing them precisely is what separates a specialist from a shop with a wide filter.