Because of the toe design, these shoes don't form to your foot, lengthwise. Almost like a steel toed shoe.  I normally wear a size ten but because of the toe I need an 11 in this shoe.  Great for hiking and working outside.  Best part is that they are easy and quick to get on and off while providing a secure fit while you are wearing them..  This is my third pair.  I would guess that a lot of other people feel the same way because the style line has been around for a long time and people keep buying them.  The treads are designed to shed mud and debris as you hike so you don't have to stop and remove caked mud from time to time.  Very lightweight for the amount of material.