The North Face made the Elephants Foot Sleeping Bag for diehard ounce-counters and alpinists. This sleep system weighs in at just more than a pound, so bring it along for use on a portaledge or in case of a mountaintop emergency bivy. The North Face wrapped Climashield NEO insulation fill weight of 5 ounces with a durable, waterproof breathable outer fabric and added nylon reinforcement to the footbox and seat. This bags oversized footbox accommodates your mountaineering boots, and suspender loops work with lanyards. A canted opening on the Elephants Foot ensures comfort for your arms but doesnt let the cold creep down your backadjust the shock cord at the opening to fend off cold winds.