Thanks that's great context! I don't think I've been out as long in similarly harsh conditions. I always carry plenty of backups, usually duplicates, because C

Thanks that's great context! I don't think I've been out as long in similarly harsh conditions. I always carry plenty of backups, usually duplicates, because CGM sensors can fall off and it happens that I screw up the insertion, so having at least one is good. Also I always carry some old-style sticks with me as backup. To prevent freezing/overheating of insulin, I'd probably pop some vials into a small thermos filled with room temperature water. Just dropping into a bottle of water is also better than leaving exposed to air.