I have given this jacket a few tests... outside in negative temps, with just a merino wool layer, outside in teen temps with just a t-shirt on underneath, I have worn it while shoveling and moving snow around the driveway. I have also worn it hunting. It is THE GIFT THAT KEEPS ON GIVING. It's comfortable, quiet, warm, has a hood, and keeps the elements off you. Literally wish I could sleep in this thing... maybe time to go cold weather outdoor camping. It's got a safety harness hole, and it's got great pockets/storage. I live in the north east, and hunt ALL kinds of animals in all kinds of weather, and this is going to be added to my top 5 Prois favorites for sure.