I ordered these and also the CLaundry Tete, both in my usual 7.5,, in white. When I opened the box I noticed these were labeled 37 5, European size which is a 7 US size. I tried them on and to my surprise they fit perfect, so that was a good mess up on Amazons part because had I gotten the 7.5 I would have had to return for a smaller size. The straps are comfortable, the heel height is good and no chemical smell to them unlike the Tete which had a chemical smell and were too large in the 7.5.I'm returning the Tete and going with these because they fit so much better. So glad I ordered both styles.So be careful with these, apparently they are sized in European sizes but listed in US size. But for sone reason when they pulled these they must have seen the 7 5 in the 37.5 size and assumed that meant size 7 5 which it does not, but also these must run a bit on the large side, at least these did for me.If they were leather it would be great, but I believe they are synthetic.