ClimbingHerc

I have the same boots and took them with me to Denali last June. I had previously purchased mine used so the standard liners were a bit off/mangled and fit my feet weird. Comfort: I upgraded to the intuition liners, had them molded to my feet and didn't have any problems with comfort in Alaska. Warmth: Again the intuition liners were a big upgrade in warmth and lightness with single sock. Highly recommended, but I can't compare them to brand new stock liners for warmth.