Enjoy chilly nights inside a tent with the comfortable Big Agnes Zirkel SL Sleeping Bag. Big Agnes stuffed this bag with a lofty 850 fill DownTek water repellent down insulation that brings the warmth without the weight, and the windproof Pertex shell prevents the down from puncturing through. An integrated half pad sleeve design allows you to slide your sleeping pad through a sleeve at the bottom of the bag for insulation. The hood, collar, and zipper help block any drafts, and the taffeta lining feels soft and plush. Big Agnes also included a pillow pocket that you can stuff a pillow or down jacket in, loops to attach additional liners to, and sacks for both camping and storage.