The high-performance Marmot Lithium 0 Degree down sleeping bag offers cold-weather and 4-season protection for backpackers and alpine climbers. Despite its warm 0 degree temperature rating, the Lithium 0 Degree weighs well under 3 pounds! An array of features and 850+ fill down insulation provide lightweight, compressible functionality for backcountry adventure.
The Lithium 0 Degree is insulated with certified 850+ fill goose down. Fill power measures the loft or "fluffiness" of down insulation and Marmot goes to great lengths to guarantee the 850+ certification with a battery of in-house and external verifications. Renowned for their efficiency in retaining heat and compressible properties, the feathers and fibers of down have an incredibly soft, comfortable feel and, despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet.
Despite its lightweight construction, the Lithium 0 Degree makes no sacrifice with regards to performance and features. Eliminating cold spots and providing comfort, sewn-through baffles ensure that the Lithium 0 Degree's insulation is distributed evenly throughout the bag. Ground-level side seams make it difficult for body heat to rise and escape through the zipper and an insulated draft tube seals cold air out of the bag along the zipper. Zipper guards help to avoid irritating and damaging snags. A contoured, ergonomic hood with a single drawcord helps reduce heat loss and a down filled collar with adjustable drawcord keep cold air from entering through the top of the bag. Marmot's patented Trapezoid Foot Box is wider at the toes and narrower at the heels, providing a more natural fit and improving warmth and comfort.
The Marmot Lithium 0 Degree is available in Regular (fits up to 6' 0") and Long (fits up to 6' 6") lengths. A stuff sack and storage sack are included.
Sizes available: Long, Regular
Marmot part numbers: 2103, 2101