Marmot Mad River 40 sleeping bag

The Mad River 40 by Marmot is an ultralight, easily compressible down mummy sleeping bag, perfect for trekking and camping enthusiasts seeking optimal rest during excursions. Specifically developed for outdoor activities and tested according to ISO standards, this model offers ideal thermal insulation for milder nights, with a comfort temperature of 7°C, a limit of 2°C, and an extreme temperature of -13°C. The 365 g filling is made from 650+ fill power certified duck down (80% down, 20% feathers) and utilizes ExpeDry™ technology, an eco-friendly treatment free of chemicals that speeds up drying and preserves the down's volume from sweat, moisture, and condensation. Made with full respect for the environment, it features a 100% recycled ripstop nylon outer fabric and a 100% recycled taffeta nylon inner lining. For impeccable ventilation management, the sleeping bag is equipped with a two-way main zipper on the left side with a snag-free slider and a second short zipper on the right side, allowing the top to be turned down for a comfortable blanket-style cover. Technical details include an insulated thermal collar to prevent heat loss, an anatomical foot space with a wrap-around construction that provides a pleasant sense of roominess, and a hidden internal pocket designed to securely store a headlamp or contact lenses. With an incredibly reduced weight of only 0.77 kg and a length suitable for accommodating individuals up to 183 cm tall, it comes complete with a storage sack and a compression sack to take up minimal space in your backpack.