Propet has a pretty wide range of wide footwear from 3E to 5E with difference sizes. I like their zip boot
https://goo.gl/f1JRkn They also have hiking boots with different sizes from 3E to 5E
https://goo.gl/naaFvo apparently good reviews .
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If your order the zip up boot, they run tight, get the next size wider. At least it was in my case.