I have only used This mat twice in 30 to 40 Have not Used On SnowpackThe bag To blow It up Works well How well it will work With freezing hands I don't know But it definitely reflects your body heat backI'm 6 foot 2 230 pounds And the large Is great for me Hopefully it works well on the snow pack If anybody has experience With this Please post it
This review was written in the old system and had content requirements that are different than reviews written today.