My sneakers are size 11.  I read the reviews here before my purchase, so I bought size 10's.  The sole length and width are about right for my feet.  The strap over the top of my foot is pretty short, there is a lot of velcro left unfastened on this top strap because of this.

I have wide feet with high arches.  These, for me, fit like a size 11 in sneakers.  I am wearing them with socks.

I like them.  I am worried about how long the velcro fastening system will last.  If there is a longevity issue I will report back in the future.