Run large - I wear a 10.5 and got a 10, which was plenty big even before the insulated liners compressed (which happened after a week). But I tried a 9 and it was too small. Compression of the liners is my biggest complaint, as they're not as warm now as when they were brand new (the even bulkier Kamik Goliath comes with a 13 mm liner vs. 6 mm for the Icebreaker). Still, they're comfortable - I hiked 4 hours in the White Mountains with no problems. Rubber does not get stiff in the cold. The tread could be more aggressive - I had to turn back when I encountered ice-covered rocks. They have a bulky look - as do all rubber boots

**5-Year Update**
Treads on the heel have been completely worn away, starting to expose the softer midsole (I wear these for 6 months of the year). The traction was never great on these. Is this the end for our loyal companions? Stay tuned...

**4-Year Update**
Started to leak: The rubbing of my heel wore through the rubber (after wearing through the liner). The rubber is apparently very susceptible to abrasion. Put some duct tape around the heel when you buy these to avoid this problem. I repaired the tear by sewing it up and coving with Gear Aid Freesole.

**3-YEAR UPDATE**
Treads have worn a lot and are bare on the heels. I will probably need to keep a pair of YakTrax on them (though YakTrax are REALLY not durable, but that's another review). Kamik makes another model with high-wear soles.

In addition to compressing, liners aren't very durable and had holes worn in them the first year. However, I just replaced the liners with new 8 mm (thicker) ones, and there's little noticeable difference in warmth. So I suppose the liner compression isn't such a big deal.

Gator at the top has opened at the seams. BTW, the lace on this gator is really annoying: I rarely use it and the lace is always dangling down near the ground - add a cord lock and cut the laces.

But the rest of the boot is still going strong, keeping me dry and reasonably warm. I think the boot was a great value.