have you tried standing them in a bucket of water up to nearly the cuffs overnight and then walking them dry?
If your Kenetreks are the insulated version, I wouldn't try that. Once they are saturated, they will take several days to dry under the best of circumstances. Believe me... I have some experience!
Having a stiff sole is a good thing. The soles on mountaineering boots aren't supposed to bend. Makes climbing less fatiguing on the feet.My first pair needed way more than 50 miles.In fact after about 100 miles I could stand on my toes with a 60 lbs pack and they still wouldn't bend.Second pair needed almost no break in at all
Yeah, i should've been a little more descriptive there. Stiff soles are a generally good thing in the mountains. I didn't have much trouble breaking the uppers of mine in. Frequent applications of beeswax based boot wax, some rough miles and they were good. Of course I'm not looking at them to wear like Danner Pronghorns. They're stiff, but there's a reason for that. I don't think most people generally know what they're buying when they get a pair of mountaineering boots.lukem- i think you just highlighted a spot of confusion there.
we are talking about the leather uppers breaking in aren't we? like lukem said, the sole is designed NOT to bend. i can't see any leather upper boot taking longer than a weeks use to mold to your foot. if the leather isn't comfortable out of the box, get it wet then walk them dry. the leather will be supple when wet and will mold to your foot as it's working.