The boot that sold me on Belleville. My pair finally wore through after nearly 12 years. Originally bought it to play airsoft and paintball in all weather conditions. Continued to use them as my winter boots, and eventually saw use in warehouse work, labor jobs, plenty of hiking, and even a stretch of homelessness. The insulation kept me perfectly warm stationary down to -20 and moving down to -40. Had the boots ice over after walking through a stream, and didn't feel it. The Vibram 360 has the best slip resistance of any boot sole I have worn, even other Belleville patterns. Never once slipped on me, even walking across a frozen waterfall. By far the best boots I have ever owned.

I use these for hunting. 600 grams of thinsulate should be enough to keep my feet warm at 20-30 degrees Fahrenheit. These boots just don't do it as expected.

I use it in forest fires and it is very good, I use specialized water use equipment and it worked wonderfully. Boot protective on my feet.

This is the highest gram insulation for any Air Force boot currently on the market. I wish these were available when I was stationed in North Dakota as I might have have avoided frostbitten feet. I only wish they were made in extra wide.

Best boot I've put on my feet, blows other brands out of the water. Fit like a glove, solid as a rock, worth twice as much to me. Love em, love em, love em, feet feel better after a long day standing they are so comfortable, and warm without sweat. seriously, anymore questions?