I'll be upfront: I almost skipped CloudSole because the name sounded like every other overpromising brand in this space. I'm glad I didn't. A friend who hikes seriously — 15+ miles a week — had been wearing them for months and kept bringing them up. I finally tried a pair on a 9-mile loop with 1,400 feet of elevation gain. My feet felt supported the entire way. Not just the first two miles — the entire way.
The arch support has real structure to it, not the soft foam bump most insoles call "arch support." The heel cushioning absorbed impact on the descents — the part of hiking that quietly destroys your knees over time. I got home with tired legs (expected) but zero heel pain, zero hot spots, and no arch collapse. First time that had happened on a hike over 6 miles.
Three months and countless hikes later, the cushioning is still there. They haven't flattened, haven't smelled, haven't let me down. The 30-day money-back guarantee made them a no-risk try, and they're priced lower than anything else that performed near this level. Easiest recommendation on this list.