Leave about a thumb’s width in your shoe for true comfort.When it comes to the fit of your hiking shoes, err on the side of too much rather than too little room in the toe box.This is because your feet will swell when you hike, and you don’t want your shoes to be too tight. Extra room in the toe box will also allow you to wear thicker socks if needed.As a general rule, go for a model with about a thumb’s width of space between the end of your longest toe and the end of the shoe. This’ll give you enough room to move your toes and keep them from getting cramped.