Hello
I haven't personally purchased any shoes from Forever21 but i did a search in yahoo-answers for you and there is a bunch of posts about how Forever21 shoes fit/sizing.Here's a link to all those.
post's.
Yahoo! Answers - Search Results for "forever21 shoe"
I hope you haven't already checked Yahoo-Answers lol
I sympathize with you though.I buy ALOT of shoes from Zappos and Endless.com.And even though alot of people give reviews to the shoes fit/sizing.Its still so hard because half will say fits true to size, half will say they were a million sizes to big or small lol
And the funny thing is anytime ive ordered based on a review telling me to size up or down or order true to size they are always and i mean always wrong.
So ive learned to just order my size and hope for the best.Zappos & Endless are perfect for this too because they do free returns.But i don't think Forever21 does that unfortunately.
Well i hope i helped some,good luck!