Nancy R.wrote a review of Hestra Army Leather Expedition Mitten - Men's on January 12, 2019
Familiarity: I've put it through the wringer
I summited Mt. Logan (the second tallest mountain in North America) in June 2018 and depended on these mitts when temperatures were regularly -20F and below, including all the way down to -44F. The removable liner that comes with these mitts are equally as impressive, and I wore them alone when it wasn't as cold. On the coldest day down to -44F, my thumbs were cold, yet my fingers were not. I wouldn't want to go anywhere near Logan without these mitts.
This was my first experience with Hestra and I will absolutely be picking up more gloves in the future.