I've been wearing Keen's for a few years now,and like them a lot. Light, flexible, supportive, and the soles have good grip and friction. Extremely comfortable. I use 'em in northern VT.
The soles are molded, not sewn on, so they can't be re-soled. I got maybe 3 years with one pair, wearing them winter and summer, working in the woods, carpentry, hunting, and everyday wear. Have another pair - Summit County's - for near 3 years now, and they show little sign of wear at all; but these are my winter boots, and I haven't beat them up as work boots.