Size 16 us 14 uk, 49 women's work
Zappos, USA
Massive selection of shoes with free shipping & returns. Plus their free VIP program gives express shipping, home pickups & loyalty points. Shoes up to size 16 US including wide shoes, with narrow shoes up to 13. Brands to suit all budgets including exclusive brands like Faryl which goes right up to 16 us. Ships to USA only.
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.
Fowt (Amazon), China
Wide range of pretty & colorful heels, boots & flats up to size 16 us. Handmade in China by Gorgeous Shoes & sold on Amazon with free returns & their customer protection. The foot length measurements look small to me e.g. size 12: 27cm, size 15: 29cm, size 16: 30cm, but most say they are true to size & the shoes get good reviews. Some customization may be possible if you contact them. Ships to USA only.
Lonia Shoes, USA
Get $20 off with code PRETTY20
US brand with striking, fashionable, colourful footwear in sizes 10-15 US with select shoes in size 16. Lonia also offer a custom shoe design service up to size 16 US. Ships worldwide. Note: returns are for store credit only.
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.
Big On Shoes, Australia
Australian retail & online store with a wide selection of brands and styles available, including their own Jacob+Therese label. All sizes and widths catered for up to size 16 AU or 47 EU. You can also visit their store in Moranbah, Queensland. Free Australian shipping with $150 spend & they ship worldwide with flat shipping rates for New Zealand and the rest of the world.
6pm, USA
6pm is the discount division of US giant Zappos. They offer 30-70% off many shoe brands with some styles available up to 16 US, occasionally even larger. Most inventory is made up of closeouts or end of line styles. So quantities are limited & items are not usually restocked. Ships to USA only.