I have been wearing these for 14 hours a day, 7 days a week for the last 5 months. They have been through downpours of rain and clay mud, 139 degree weather, hours of direct intense sunlight and all the other joys that come with working in Iraq.  While they don't look like new anymore, they've exceeded my expectations and are in excellent shape.

They are obviously comfortable enough to wear for extended periods of time and are engineered with superior air flow to keep down on the foot stench (I don't use foot powder).

Downside: they run half a size big and I didn't have time to send back to get correct size. oh well, still a great pair.

This is the only pair of combats I've owned and I highly recommend to anyone who has the demands that this style of footwear provides.