Am_Fear_Liath_Mor, I know what your saying about the Blizzard bags functionality, I still think a military poncho liner and poncho would be more durable and efficient as this piece of garbage. The use of reflectivity has it's uses but to this date there is nothing significantly available for size to weight and durability that I'm aware of. I had tried this bag over the hype and again was disappointed with it. In a life or death situation and you had this available it would help but would it last the whole night without tearing itself apart, I would be skeptic. Would I trust my life to it or recommend it, absolutely not. I would trust a military poncho liner and the poncho with it if it was raining or a 55 gallon trash bag with leaves and grass in it first. I carry a WM bag in my LRBOB kit but I was trying to find something for my EDC backpack BOB.