Originally Posted by
Retro Grouch
Or, if you're buying something like shoes, buy 3 pair straddling the size that you think that you need. Return the 2 pairs that don't fit. If you time it right, you can even get the returns processed during the same credit card billing cycle.
I've been really fortunate with cycling shoes ... 5 pair, ordered online, and they all fit. In fact, they are among my most comfortable shoes out of all my shoes, cycling and otherwise.