Why the Wide label is useful
The title explicitly distinguishes this pair from Cankton listings that provide a number without a width. If your measured length points toward 10.5 but a narrower shoe compresses the forefoot, a wide selection is worth comparing before adding length. It does not guarantee that the rigid cap will match every broad foot shape.
Width across the forefoot and volume over the instep are related shopping concerns but not interchangeable measurements. A wide shoe can still press on top of the foot, while a roomy heel can move despite comfortable toes. Judge those zones separately instead of making the entire purchase depend on the word Wide.
Cankton rather than a different support system
The manufacturer presents Cankton with a steel cap and Memory Foam cushioning. The 10.5 Wide listing does not establish a separate arch-support mechanism, prescribed-orthotic accommodation or benefit for flat feet. Those would be additional claims requiring their own evidence.
If using a prescribed insert, resolve compatibility with the footwear manufacturer and your clinician before treating extra width as sufficient accommodation. Internal height and heel position can matter as much as the amount of side-to-side space.
The closest selection alternatives
Pebble/Black 10.5 is a same-length color listing without Wide stated in its listing title. It may therefore be a poor replacement if the retailer cannot confirm the width you need. Black/Charcoal size 10 changes length, while Hartan 10 W changes both the model and closure. Keep those differences visible when comparing prices and return options.