Men’s shoes are wider and they come in larger sizes. Many stores carry size 8 mens as the smallest size, which is equivalent to a womens 9.5 or 10. Most stores only carry women’s shoes up to a women’s size 10-11. Generally women have more smaller and more narrow feet than men. Of course there are exceptions and you should use whatever fits you best. If you are going with a wider shoe for more toe room you should make sure that the heels aren’t too wide for you which causes heel slippage.
There five areas of fit that you want to consider: length, heel width, midfoot width, toe box width, and height volume. If a shoe doesn’t fit well, try and figure out what parts of the shoe don’t fit your foot and why, then use that information to help you find a better fitting shoe.
When you get hiking shoes they should have a ramp that you can use. When going up the ramp, you want to check for heel slippage. Some slight movement is normal and will lessen with time as the shoe breaks in, but you don’t want to be rubbing up and down as that will cause blisters. Going down the ramp, you want to make sure your feet aren’t sliding forward and hitting the front of the shoe. You want no contact whatsoever with the tips of your toes and the front of the shoe. This includes both the front of your toes and the tops of your toes. If you are going with a wider fitting shoe you should also side step up the ramp and make sure you aren’t sliding around doing that. Finally, pay attention to the vertical volume of the shoe. You don’t want it to feel tight around your instep or the tops of your toes but you don’t want too much room or you will slide around the shoe. This can sometimes be adjusted by removing or adding insoles.
The ideal fit for a shoe is to be secure in the heel and midfoot but with lots of room in the toes. Ideally your toes should be able to fully splay out when walking. If the toes are constricted you will get terrible foot pain. If you have to compromise on a shoe, toe room is more important than having a secure heel and midfoot. A solid inch of extra length in a shoe is good.
Finally, if you buy from a store that you can’t return used, wear them around the house for a solid few hours. Sometimes certain parts of the shoe might rub your foot in a weird way that isn’t noticeable until you wear them for a while. Other features of your shoe like the amount of heel rise, height of arch support, structure of the arch, or position of the arch can cause your feet to hurt for reasons that are not easily understandable. These are things that you won’t always be able to experience wearing them around a store for a few minutes.
An experienced shoe salesperson should be able to look at your bare foot and find a shoe that fits you. The best places to buy shoes are smaller business and specialty shops. When the owner of a business works in the store they make sure to train and hire good employees. In larger stores like REI they have a huge turnover rate and the management only cares about satisfying the demands of corporate.