I would say that they run pretty true to size. If I remember correctly there is a printable sizing tool, which I used. I have a size 9. When I first got them, they bound tightly across the big toe joint, so I ordered a 10. I figured out that the problem was that I wasn't adjusting the one-piece strap correctly. I ended up returning the 10 and keeping the size 9. I think a size 9.5 would be ideal for me, but they only run whole sizes. I wear a size 9 in running shoes, but some of my dress shoes are 10's. I hope this helps.
Answered on 3/12/2017 8:51:27 PM by Active Granny from Texas
According to our fit team this item is running true to size. If you wear a half size we recommend half sizes order up.
Answered on 3/13/2017 11:28:53 AM by Product Specialist Greg from Sierra Trading Post