The end-all "what if things go crazy" bag—800-fill goose down and waterproof-breathable DriZone keeps you warm to 20 below. Funk!Off™ liner—simply turn the bag inside-out leave it in the light and voila dirt and oils magically break down for a cleaner fresher bag. Dual draft tubes a zippered storm flap an Expedition Jacket Hood and fixed side baffles ensure total warmth at high altitude or Arctic temps. We weld the seams so you don't risk blowing one out due to abrasion nor will water have stitch holes to sneak through. Toss your alarm or cold-sensitive batteries into the Internal Media Pocket and make sure you're awake with juice in the GPS the next morning.

Buy the Sierra Designs Electra -20 Degree Sleeping Bag at Altrec.com. Orders over $45 qualify for free shipping.