I'm not in a good position to compare the soles of the 1600 with the Alaskas. The nearest pair of Alaskas are 3.5 hours away from me and it has been close to a month since I tried them on.GuillaumeM wrote: ↑Thu Feb 13, 2020 11:32 amI am looking at this shoes also for my girlfriend. Can you give some impressions about the sole? Does it feel stiffer than the Alaska as well? Can you squeeze the shoe/sole with your hands only or do you need to put the shoe on the ground and use your body weight? A stiff sole with torsional rigidity is more important than ankle support (even if ankle support is nice as well).
The sole of my 1600s feel very stiff to me, granted they have only been skied in once (though I'm heading out with them this weekend). If by "squeeze the shoe/sole" with my hands you mean to flex them at the ball of the foot, I can only barely make any flex with my hands (and I'm fairly strong). I can get very slightly more flex when twisting it along the front back axis. Somewhere along the line I got the impression that all these BC soles are made by the same company and have about the same flex.
In terms of the responses lilcliffy got from the Alpina in 2015, I can't corroborate based on my very limited experience. Handling the Alaskas, I definitely recall me being surprised at how lightweight the ankle support felt. Whereas wearing the 1600s left me with an immediate impression of feeling a lot more solid. I was ready to love the Alaskas and assumed I would buy them based on all the positive reviews. I was going to be OK with the flexy ankle, figuring it'd be nice for K&G skiing, but I got too much of a pinch pain in the front of the ankle. The 1600s felt/feel like a solid hiking boot, that's the best way I can describe it. To me, in the store, the Alaskas felt like a solid hiking shoe with a more flexy portion from the ankle up.
I was skeptical of the fabric lace anchor at the ankle of the Alaskas, in terms of longevity. I was happy to see the 1600s have a locking type metal anchor there and well polished rounded anchors elswhere. I remember though that the snowboard boots that I've worn the past 15 seasons have fabric lace anchors and I haven't had a problem with those.
Really though, it comes down to personal fit and feeling. I think it's worth eating $20 in shipping to try on options to see what feels the best for your girlfriend. This is not a short term purchase unless she decides she doesn't like xc skiing anymore.