UKClimbing.com gear reviewer
Viv Scott takes the Marmot Expedition Mitt to Alaska for a thorough testing:
"The mountains of Alaska have a well-deserved reputation for cold and as such are not a place to scrimp on handwear... ...On a recent trip the expedition mitts performed superbly... proving crucial for the un-acclimatised slog through the short but bitterly cold Alaskan night to the summit of Mount Hunter."
Read more at http://www.ukclimbing.com/gear/review.php?id=2301