Marmot Mad River 15 Sleeping Bag: 15 Degree Down

Mad River 15 delivers lightweight warmth, water-resistant down, and packability for cold-weather backpacking

What Our Gearhead® Experts Are Saying:

"The Mad River 15 is my ideal sleeping bag for chilly nights on the trail. The 650-fill ExpeDRY down dries quickly and stays warm even in damp conditions, while the anatomically wrapped footbox keeps my feet cozy. I love the dual-zipper system for easy ventilation and the draft collar that seals in warmth. It´s lightweight, packable, and made with recycled materials—perfect for backpacking trips where comfort and sustainability matter."

For those crisp backcountry nights, the Marmot Mad River 15 Sleeping Bag provides the warmth and comfort we need without weighing us down. Packed with 650-fill-power ExpeDRY down, this mummy bag delivers high-loft insulation that dries quickly and retains warmth even in damp conditions. The lightweight yet durable recycled nylon shell and lining add an eco-friendly touch, ensuring we sleep soundly while treading lighter on the planet.

Designed for trail-ready comfort, the full-length zipper with a snag-free slider allows for easy entry and exit, while a short secondary zipper provides additional ventilation on warmer nights. The draft collar locks in heat, and the anatomically designed footbox with wraparound construction enhances warmth and sleeping comfort. Whether we’re embarking on a high-altitude trek or settling in at basecamp, the Mad River 15 keeps us warm, comfortable, and adventure-ready.

Details

• 15°F down sleeping bag designed for backpacking and cold-weather camping
• 650-fill-power ExpeDRY down provides lightweight, high-loft warmth and quick drying
• 100% recycled nylon shell and taffeta lining reduce environmental impact
• Full-length snag-free zipper for easy access and ventilation control
• Short right-side zipper allows for additional airflow and fold-down comfort
• Draft collar and wraparound footbox enhance warmth and heat retention
• Includes a compression stuff sack and storage bag for easy packing
• Item #MARZA4R

Tech Specs

Material

100% recycled nylon ripstop

Insulation

down

Shape

mummy

Zipper

full-length

Max User Height

[short] 66in, [regular] 72in, [long] 78in

Shoulder Circumference

[short] 60.6in, [regular] 63in, [long] 64.5in

Venting

full-length zipper

Degree

15°F

Storage Sack

yes

Stuff Sack

yes

Activity

camping, weekend camping

Manufacturer Warranty

limited lifetime