I have purchased several pairs of TUKS Creepers through out my life and these are the largest ones I have ever had to order. I am a US women's size 6 in most pairs of shoes, which would translate into a US men's 4. However, I have a pair of black and white 2 inch high creepers that are a men's 3, and also a pair of the sneaker type creepers that are a men's 4. To be safe (and because amazon prime does free returns) I ordered both a 3 and 4 and planned on taking back whichever pair didn't work for me. When I got them though, they were both way too small. This was surprising to me because I've never been over a size women's 6/ men's 4 in any pair of shoes. These are sooooo cute though, so I took both pairs back and ordered a 5, which fit me perfectly. So, overall, these shoes do fit small and narrow. I would definitely order a size from your regular mens shoe size.