I've never had a hiking shoe or boot not give me blisters as they break in. Now, my trial run with these was 10 days at Disney and Universal, so it was not aggressive terrain. But, we averaged close to 10 miles a day. I packed an extra pair of shoes just in case, but I figured I could break these in on an easy trip like this. I expected to get hot spots and swap my other shoes in every other day. Well, I wore these the entire time. Way more comfortable than my running shoes. They're on the heavier side but they're extremely comfortable. You can barely feel the surface you're walking on. Since I've been back, I've been on one short hike. They're really comfortable. Great arch support and you can barely feel the rocks you're walking on. There is a little slip in the heal, but that's par for the course with a hiking shoe. Again, not so much slip that I developed any blisters in the heal or toe area. My guess is this because there is still enough flex in the shoe, even with a nice thick sole. The toe box is a little cramped, but I have wide feet. Either way it hasn't been an issue. When these wear out, I'll be buying another pair. Might just buy another now in case they stop making them. Really great shoe.