Full Length Locking YKK Two Way Zipper with Zip-Guard Slider
Down Defender to Improve Water-Resistance in Wet Conditions
Nautilus Multi-Baffle Hood
Internal Stash Pocket
Snagless Insulated Draft Tube
Hood Draw Cord
Two Way Zipper Sliders
Stretch Tricot Baffles
Two Hang Loops
Stuff and Storage Sack Included
Ultralight fabric, high-quality down, and a minimalist design come together in the Lithium 0° Sleeping Bag - Long. Suitable for mountaineers and backpackers adventuring in temps down to 0° F, its lofty 800-fill-power-down insulation and water-resistant Down Defender treatment stays warm and dry. After an epic day on the mountain, give your feet a rest in the roomy wrap-around footbox. Smooth, curved baffles help keep the fill in place, while the nautilus multi-baffle hood with a drawcord, snagless insulated draft tube, and full-length two-way zipper with a zip-guard slider limit heat loss. If the interior gets too warm, use the fold-down secondary zipper to get some air. Tuck small items into the internal stash pocket.
Bag Temperature Fahrenheit:0°F
Bag Temperature Celcius:-18°C
Tested Comfort:9°F / -12.8°C
Product Weight:2lbs 13oz (1285g)
Main Fabric:Pertex 20d 100% Nylon R/S 1.03oz/yd
Lining Fabric:30d 100% Nylon DWR 1.09 oz/yd
Insulation Material:800+ Fill Power Goose Down
Shoulder Girth:63in (160cm)
Hip Girth:58in (147cm)
Footbox Size:46in (117cm)
Includes Stuff Sack:Yes
Stuff Sack Size:7 x 16 in, 19 x 41 cm
Includes Storage Sack:No
Includes Compression Stuff Sack:No
Compressed Volume:640.7ci » 10.5 liters
Rated 5 out of
Finally stopped my chattering teeth!I’ve been hunting and trekking ever since I started in my early teens with my dad in the Colorado Rockies. The feeling of waking up to blue skies, 10˚ F, and hearing the snow go crunch under your boots is indescribable. I’ve had lots of bags through the years and they’ve all left me cold... literally! Suffering through the night takes away all the charm of the incredible nature I love. When I first crawled into my new Lithium, I knew this was going to be different. The down filling made it soft and cozy from the start...and not once did I feel the biting cold around me. Just a perfect temperature and an amazing deep sleep! Thanks Marmot! You finally stopped my teeth from chattering!
Date published: 2020-04-30
Rated 2 out of
Could have been a great bagI read countless reviews before finally placing my order for the Lithium and patiently waited for it to arrive. Unfortunately upon opening the bag I discovered it no longer has a draft collar - apparently this was removed when Marmot did an update in 2017. Having a 0 degree bag without a draft collar is a non-starter so I sent it back. The fabric, zipper, draft tube, overall weight, and packability of the bag were great. The hood lacks a draw string on the chin area (e.g. you can draw down the top of the hood, but there is not a pull on the bottom) making it difficult to cinch how I would want.
I really wanted to keep this bag, but in the end couldn’t do it without the draft collar. Since the Lithium has been out for so many years, I would recommend carefully evaluating the source and timing of any reviews you read since most I came across were of the older design.
My rating reflects the price of the bag and the lack of key features. Had the bag been half the price I would rate it different, but for a premium price this only has basic features.
Date published: 2018-12-07
Rated 5 out of
The Scherminator from
Works great!I have the old version of Lithium, bought it in 2012. Until now I have used it both during summer and winter and it has worked out great. Of course it's warm in summertime (then I've used it more as a blanket) and a bit un-necessarily heavy (still not that heavy though) but it has never been a problem.
I have been on several winter hikes as well and have never had anything to complain about. At the coldest I have slept in about -25C/-13F (at least that was what it was in the morning when we woke up) but then it was with underwear and it did get a bit cold during the night. Still I got to sleep so I think it did really good job.
I more or less always use a silk sheet together with my bag as well, both winter and summer.
Date published: 2017-03-09
Rated 5 out of
Very pleasedI live in the PNW. I needed a bag that I could use for emergencies and backpacking. I am 245 lbs. 6 foot. I have no problem fitting into this bag. I have enough room to zip up all the way. It's snug and yet I'm able to move inside easily. Since the virus I've been using it indoors with the windows open. Most night it's been around 35° to 45°F. The thing I most like is I don't get overly heated. When you get out of the bag you sure can tell the temperature differences.
***** I highly recommend this product.
Date published: 2020-05-01
Rated 5 out of
California hiker2020 from
Small, warm, light, amazing!Used it in California Sierras for the first time this week.
Compresses so small! I further shoved it into my 30liter pack on the very bottom.
I bought the large, although I dont really need it. I am 6' tall. The extra 4oz is offset by the extra room in the bag, I can roll around freely, extra length is nice when you are trying to sit up in the bag in the morning, gives you more freedom for movement.
It is missing the neck baffle. I was testing it under some extreme wind drafts. There is a way to stay warm, you can just close the bag and leave room for breathing, or you can lay one side on top of the other, depending where the wind is coming from.
Overall amazing bag, Expensive, but I think will be worth it long term.
Date published: 2020-09-28
Rated 4 out of
Toasty Warm Sleeping BagGreat bag for the price, I wish it had a full zipper instead of 2/3, but the 1/4 zip on the other side is a great addition, the only other downside is no draft collar and I wish it was a little roomier going towards the foot-box, but I recently slept out with the night time temps reaching zero Fahrenheit and was toasty warm all night long. Excellent weight to function ratio - I would recommend this bag.
Date published: 2020-02-27
Rated 5 out of
Roomy and EfficientCouldn't wait to break in my new Lithium Sleeping bag. I slept so comfortably in this bag, I had room to roll over and the bag didn't twist up. It's light, versatile and compacts WAY down...no pun intended. This model is a classic that I'm so grateful Marmot has kept around and keeps improving. Bag stayed dry in the tent dew. Pushing 100 mile days with this baby. Love it.
Date published: 2017-12-28
Rated 5 out of
VersatileI have really only used Marmot bags for my adult life, from a Col that has kept me toasty to 40 below to more moderate synthetic fill bags that have done great in three season conditions. I bought a Lithium for a trek up Kilimanjaro where its warmth and versatility served me well. On the first night, in the steamy jungle with monkeys playing nearby, I appreciated the extra zipper to vent heat, and had no issues with the down getting too moist despite major condensation in the tent. The second night, the temps dropped below freezing as we topped 11,500 feet, and I still had to sleep with my bag unzipped to avoid overheating. And so it went for several days heading above 14,000 and then 15,500' (summit night) when I finally had to zip up against temps that hovered around 10 F. Comfy for all 7 nights. Contrast that with an ascent of Mt. Baker when was confined by rain for 18 hours in a coffin sized single tent that was full of condensation and sagging onto my bag. I was certain I would be doomed to freeze as the down eventually soaked through, and my not-quite-dry clothes vented moisture outward. Thankfully, the bag's shell did a nice job resisting the moisture from the tent wall, and the treated down kept its loft, despite the evaporating moisture, leaving me warm and impressed. In terms of fit, I have a 42" chest and very broad shoulders, and I am good with this bag - but I would not go any smaller, and I couldn't wear much beyond a light puffy inside. Zippers are just okay... they sometimes snag. Not enough to bug me. And I have noticed a handful of down plumes have escaped, but nothing alarming. The chest pocket is big enough for a headlamp and spare battery, but not much more.