Never Summer? How about Always Winter? No question about it, the Never Summer MemBrain Sleeping Bag from Marmot is a rugged winter sleeping bag, meant for the darkest, coldest days of the season. This classic mummy style bag is filled with 600+ goose down, with a down filled collar and breathable waterproof exterior. All cords and zippers are easily accessible from inside and outside the bag, so you don't have to risk getting cold to tighten things up. The foot box at the base of this down sleeping bag also has a pocket for heat pockets to really keep your tootsies toasty. The Never Summer Sleeping Bag is one you'll likely never use in summer, but it will be your best friend when the temperature plummets.