My flatland boots are a pair of Danner's, but I have a couple of years experience with the Zamberlan Saguaro (uninsulated) in the Colorado mountains. Looking to add a pair of Zamberlan insulated boots to the hunting wardrobe this year given my experience with the uninsulated set. The Zams have a rocker that helps propel the foot forward, which I find helpful with mountain trails. The support of the boot is stiff without being restrictive, and there isn't any give with a loaded pack. I put some miles on before I took them to the mountains, but I they felt great out of the box.