Weighing just over a pound, the high-performance Marmot Plasma 40 Degree down sleeping bag is ideal for warm weather backpacking. Premium 900+ fill power goose down insulation, Flow Gate technology and vertical baffling create an extremely lightweight, compressible package for backcountry adventure.
The Plasma 40 Degree is insulated with certified 900+ fill power European goose down. Fill power measures the loft or "fluffiness" of down insulation and Marmot goes to great lengths to guarantee the 900+ certification with a battery of in-house and external verifications. Renowned for their efficiency in retaining heat and compressible properties, down fibers 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.
Flow Gate construction is used in the Plasma 40 Degree sleeping bag to provide better thermal value and increased weight reduction. Strategically placed baffles eliminate lateral and vertical down shifting by using vertical chambers with Flow Gates to control the position and density of the down insulation. This technology also enables the user to manually shift the down to preferred locations, customizing the sleeping system to each individual. Wrap-around foot box construction incorporates the Flow Gate design with Marmot's classic, trapezoidal shape for increased warmth and a comfortable fit.
Despite its lightweight construction, the Plasma 40 Degree makes no sacrifice with regards to performance and features. A contoured, ergonomic hood, insulated draft tube and insulated collar around the neck area seal out cool air and feel soft and comfortable against your skin. Two-way zipper sliders offer venting options and zipper guards help to avoid irritating and damaging snags.
The Marmot Plasma 40 Degree sleeping bag 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.
Styles available: Long, Regular
Marmot part numbers: 20050, 20010