Wide width Size 11.5 us 9.5 uk, 44 women's men's heels & alternative shoes in large sizes
Amazon.com
You can get great deals on large size shoes at Amazon with a bit of patience. Their own Amazon Essentials range does fashionable styles at great prices up to size 15 US. The women's shoes department goes right up to 16 US, although many of the largest sizes will either be Chinese brands or unisex. If you have Amazon Prime, many shoes are eligible for free, fast shipping. Plus you can even try before you buy.
Cowboy Boots USA, Mexico
Custom boots handmade by Miguel in Mexico up to size 16 us. Not just cowboy boots: all sorts of styles including platform, long boots & men's high heels. Choose from a wide range of styles or design your own boots. Free US shipping & ships worldwide. As well as the Etsy store & reviews, you can see more custom boot designs on Instagram.
Chaussez en Grand, Canada
Specialist large size shoe store in Quebec also selling online to Canada ($10 flat rate shipping) with a wide range of women's shoes in sizes 10 to 15 US, with selected fantasy styles up to size 17 US. Large selection of brands and styles. They even do rain boots, slippers and socks. They are happy to advise on the right size for each style if you send them your foot measurements before ordering or during checkout. You can also visit their shop in Rue St-Hubert, Montreal. Website is in french.
Lidia Talavera, USA
Inclusive high heels, wedding shoes, boots & dressy flats for women (up to size 13 us, 11 uk) and men (up to size 15.5 us, 14 uk, 48 eu). Medium, wide & extra wide widths available. Women with shoe sizes larger than 13 us can have styles from the men's range customised for their width. The full collection is made to order and customisable: choose from 70 colors & 3 heel heights. Free shipping & returns for US, Canada & Mexico. For worldwide shipping, contact them for an accurate quote first. Custom orders can still be returned for a refund if needed.
Kira Goodey
Genderless heels designer making high end outrageous shoes in inclusive sizes. Size up if you're a half size, have wider feet or are used to wearing European men's sizes. Shoes are listed in Euro sizes & the US size conversions are unusual. 46 would usually only be a women's 14 us or men's 12.5 approx, but here 46 converts to a 16 us. So I'd advise contacting them for size advice. Ships to US only.
Roker, UK
Luxury handmade leather boots made to order. 5-10cm heels, with platform options. Men's high heels to size 46 eu, and you can contact them re women's sizes and colour options. Ships worldwide from London. Since boots are custom made, returns are not usually possible.
Bolingier, Poland
Affordable heels & boots made to order in Poland up to size 47 eu or a women's 16 us (about a men's 14 us). Mainly fetish heels but good mid heel pump options & dress sandals too. Some customisation possible if you contact them. Most of their website is in English as well as Polish but it's dated and a bit awkward to use. But there's also a Bolingier Ebay store (99% positive feedback as of August 2022) which gives you extra buyer protection & ships worldwide excluding the UK, Germany, Russia and Ukraine. In business since 2005.