Love the fit, just like any other 90 it fits a bit wider, the laces feel firm, but if u just loosen these up a bit it's a perfect fit.

Definitely go a half size up. I tried these on in my own size and I couldn’t squeeze my feet into them. I went a half size up, it’s still difficult (but doable) to get my feet into them. However, there is some room left at the toe, so I wouldn’t suggest going a FULL size up.

I went true to size in these and they fit great. The Tailwind 4 however does provide a lot more space compared to other Air Max's such as the 1,90,98 which might feel odd in the beginning.