These boots fit me perfect. I have never had a blister. For being such a lightweight boot, they have excellent support throughout. I did 30 miles with a 90lb pack, and didn't twist my ankle once. They seem to be very durable as well which is always a plus when dealing with hiking boots.

These are great hiking boots. Very good grip and extremely waterproof. As people point out, the soles are stiff, front to back. However, they are quite soft, so you definitely feel it when you step on pointy rocks. Sharp rocks also did a lot of (cosmetic, I think) damage to the side of the sole.The only complaint for me is the the heel cup seems a bit low and it rubs a bit at the top on both of my heels, something I haven't had with other boots. But it took 4 days to get any blisters from it.

Adendum: upon taking the boots out of the closet for another hike, noticed that some of the stitching on the side had busted and there now is almost an inch long split. I'll have to look into getting them returned/replaced :-( Too bad, I really like them otherwise.

Bought these a few months back for hiking. So far I've used them several times in the NH Presidentials and have had no problems. They've done a great job with a fairly heavy pack on Mt Washington in March and kept my feet dry crossing some streams in Franconia Notch in May.

It has not caused any problems for me but make sure you get fitted before ordering because mine are just a bit big.

This is a great boot, but I can't give it 5 stars. As most people have mentioned it runs very narrow, and my feet are not excessively wide. I even got a 1/2 size big after reading the other reviews here. I wore it around the house for 2 days (15 hours total) before I took it on a trail. I've put 30 miles on them on trails so far and they are finally feeling more comfortable. Otherwise they're awesome. Rugged, have great grip on even some slick, wet rocks, and they're water tight.

I bought a pair of these in summer 2007 after falling and slipping on several previous hikes in my old boots. Since then I've put over 200 miles of Adirondack high peak trails behind me with very good grippability on wet and dry and submerged rocks. I have fussy feets and have no sore spots or blisters. In my opinion these are the most comfortable, supportive boots I've ever owned. They are starting to look beat - but they are still waterproof and the soles are still sticky. Fashion-wise, they go with everything.

Great hiking boot, good construction, quality, all that jazz. Also Sportiva is the best company to work with. That said... my boots don't fit. 42.5 was too small, 43.5 was way too big. The obvious solution? a 43. I ordered em up and when they arrived they seemed to fit wellalthough a little snug in the toebox. I figured after a few days use they would surly break in a bit and be mint. I have worn them at least a dozen times and they are still too narrow in the toe, and a bit too short also. In a boot like this you want then to fit just right. I dont have wide, or big feet by any means, and this boot is too narrow. Sized up to a friends rival company's boot of the same size and specs, his is notably wider, even to the naked eye. I would try on these boots in person, and make sure they fit nicely with the sock's you'd be wearing on a hike... dont leave it to assumption or a guess.

So far, I'm pretty happy with these boots. Excellent for light day hikes. With a heavy pack I'd go with something a little more substantial. The only reason I can't give them 5 stars is that durability has always been a question with La Sportiva. I love their boots and climbing shoes, but find that they tend to fall apart quicker thay they should. I haven't tested these enough to find out yet.... so 4 out of 5