I’m so glad I heeded the advice of other reviewers and sized up a whole size. I normally wear a 10 in street shoes and rarely, a 10.5 in athletic shoes, but fortunately there wasn’t a 10.5 in the turquoise shoes so I went up to size 11 and it’s a good thing I did because with a 10.5, I think my toes would have been pressing against the top of the shoe. The toe box is plenty wide, which I like (my feet are regular width but I like to not have my toes scrunched together). The heel seems lower than what I’ve been used to so I’m still assessing that. I definitely noticed having better balance in my exercise class because these shoes provide a good platform for the feet. I gave them four stars because the sizing really is off, lengthwise, from what most of us are used to.