I hate buying shoes and I hate buying new cycling shoes. But with free returns and reading other reviews I chose them and I'm glad I did. I don't use clamps, I still have toe clamps on my vintage '87 road bike and I just wanted something flat, snug fitting and strong enough to stretch whenever I want - they do. I wear 10.5 wide and went with them at 11. Maybe 10.5 would be good, but these are perfect.