Narrow, very narrow, I don't have wide feet, not even close, but I can feel the edges of the padding when wearing them. Not even a single strand of hair width of space either, don't expect to be able to use an insert or anything, or anything thicker than nylons. Accidentally hit my foot on a door, the outer shell is so thin it punctured right through to my toe like I wasn't wearing anything at all. So just know, you get what you pay for here.