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Marmot

Marmot Mad River Down 40° Long Sleeping Bag

Marmot Mad River Down 40° Long Sleeping Bag

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The Marmot Mad River is a packable down mummy bag built for backpackers who want a solid night's sleep after a long day on the trail. Its RDS-certified 650-fill-power goose down lofts up tall yet packs down small, and chemical-free ExpeDry™ helps the down dry quickly and keep its loft when sweat, humidity, and condensation set in.

The gender-free long length fits sleepers up to 6'6", and the 100% recycled shell and lining keep the bag light on conscience as well as on the back. A full-length left-side two-way zipper with an anti-snag slider and a short right-side zipper give precise ventilation and blanket-like coverage, while the anatomically shaped footbox, draft collar, and internal stash pocket round out the details. The included storage and compression sacks let you cinch it down and head out.

Key Features

Brand Marmot
Model Number M16038
Product Type Down Mummy Sleeping Bag
Temperature Rating 40°F / 4°C
Tested Comfort 44°F / 7°C
Tested Limit 35°F / 2°C
Insulation RDS-Certified 650-Fill-Power Goose Down with ExpeDry™
Shell and Lining 100% Recycled Fabrics
Shoulder Girth 65 in / 164 cm
Hip Girth 59.8 in / 152 cm
Footbox Size 50.8 in / 129 cm
Zipper Location Left Zip
Zipper Type Full-Length 2-Way Left Zipper with Anti-Snag Slider; Short Right-Side Zipper
Stash Pocket Yes
Stuff Sack Size 11.8 x 6.3 in / 30 x 16 cm
Product Weight 1 lb 13.7 oz / 843 g
Product Care Machine Wash Cold, Use Liquid Detergent, Do Not Use Powdered Detergent, Gentle Cycle, Tumble Dry Low, Do Not Iron, Do Not Bleach, Do Not Dry Clean, Do Not Use Fabric Softener, Rinse Twice, Do Not Store Wet

Highlights

  • RDS-certified 650-fill-power goose down with ExpeDry™ for lofty, compressible, quick-drying warmth
  • ExpeDry™ is a permanent, chemical-free alternative to DWR (Durable Water Repellent), providing quick-drying, loft-retaining performance in wet and humid conditions
  • Gender-free design: long length fits sleepers up to 6'6"
  • 100% recycled shell and lining fabrics
  • Full-length, left-side 2-way zipper with an anti-snag slider for improved ventilation, versatility, and easy access
  • Short right-side zipper offers fold-down comfort and additional ventilation
  • Anatomically designed footbox with wrap-around construction provides warmth and roomy comfort
  • Internal stash pocket for contact lenses, headlamp, and valuables
  • Draft collar seals in warmth and prevents heat loss, even when tossing and turning
  • ISO temperature testing adheres to reliable international standards
  • Included storage sack and compression sack let you pack down, cinch up, and head out

Warranty

Marmot products are warranted against defects in materials and construction for the practical lifetime of the product. This warranty applies to the original owner of the product and does not apply to normal wear and tear, improper care, misuse, accident, neglect or the natural breakdown of materials over time. Warranty claims are evaluated to determine if the product will be repaired, replaced, or refunded.

Frequently asked questions

What fill power is the down insulation?

The bag uses RDS-certified 650-fill-power goose down with ExpeDry™.

What is the tested comfort and limit temperature?

Tested comfort is 44°F / 7°C and the tested limit is 35°F / 2°C.

How large is the stuff sack?

The included stuff sack measures 11.8 x 6.3 in / 30 x 16 cm.

How should the sleeping bag be washed?

Machine wash cold with liquid detergent on a gentle cycle, tumble dry low, and do not bleach, iron, dry clean, or use fabric softener.

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