I take blues-dancing classes and had been wearing fat socks, but decided to buy these shoes instead. After wearing them for several classes, my big toe went numb. I asked both my teacher and the owner of a dance store about the fit. They think the fit is fine. And since I wasn't having any problems before wearing these shoes, there's something wrong happening when I wear them...just can't figure out what, though.

They are VERY lightweight - hardly more than a stretchy, thin sock. I've worn them both with and without socks. They're fun to dance in, providing both a bit of tackiness and a bit of slide, but to use them I have to tape my toe first to avoid the second problem--blisters]. I'll be trying something else, though.