We find that these run true to size. So order your usual men's dress shoe size. If you're a half size it's best to wear a half size larger than usual (7.5 fits an 8, 11.5 fits a 12, etc.).
These come in whole sizes and, because they're converted from European sizing, are also made in a few half sizes - check the dropdown to see what half sizes are available.
WOMEN'S SIZING INFO:
Also, because they're converted from European sizes, the men's version of this shoe is really just an extension of the women's sizes and vice versa. So if you wear men's size 6 or 7 the chart below may be helpful.
The foam insole is removeable! Which means that you can get a custom fit by replacing the insole with one that you've purchased to custom fit your foot (or add arch support or use orthotics, etc.) or just wear them as is.
Retro Runner size you'll probably wear: