It doesn't matter if you're a minimalist or classic backpacker, who wouldn't love the Marmot Plasma 40°F goose down sleeping bag that weighs just a few ounces over 1 lb. and packs down small. FILL. 900-fill goose down. WEIGHT. Long - Left Zip: 1 lb. 3 oz. Regular - Left Zip: 1 lb. 2 oz. TEMPERATURE RATING (F). 44 degrees (F)

• Filled with certified, super-lofty, ultralight, 900-fill-power goose down (the largest down cluster with the lowest trace of feather) for an unsurpassed warmth-to weight ratio
• Flow Gate Construction lets you manually shift the down to preferred locations move it to cold spots, customizing warmth to your personal sleep preference
• Pertex® Quantum nylon ripstop shell is lightweight and durable, and offers silky softness that enhances the insulation's loft
• Shell is treated with a Durable Water Repellent finish that causes moisture to bead up and roll off
• Hood drawcord and insulated collar envelops your head and shoulders in warmth; down gasket face muff lets you cinch the hood snug without it digging into your face
• Vertical baffles prevent cold spots by keeping the goose down fully lofted and in place
• Down-insulated draft tube backs the 2-way, full-length zipper to keep the cold out
• Wrap-around footbox construction reduces down compression; Flow design with the classic trapezoidal foot box shape lets feet move freely and keeps down lofted for warmth
• Zipper guard runs the entire length of the draft tube to prevent fabric from getting caught in zipper
• Marmot Plasma sleeping bag features an ultralight stuff sack and storage bag
• European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags