Mammut Protect Fiber Bag

The Mammut Protect Fiber Bag is built for serious winter conditions. It has a comfort rating of 14°F and a comfort limit of -1°F, making it suitable for cold-weather camping, though it can technically withstand extreme temperatures down to -40°F.

The central two-way zipper makes it much easier to regulate your temperature without having to fully unzip the bag. It allows you to vent heat from the middle or bottom of the bag while keeping your upper body insulated, which is particularly helpful when you're trying to adjust comfort levels during the night.

Mammut specifically engineered the hood area with noise-reducing materials to minimize the crinkling sound often associated with synthetic sleeping bags. This, combined with the included earplugs, is designed to help you sleep more soundly in windy or exposed environments.

The anatomical foot box is shaped to follow the natural position of your feet while you're lying on your back. This provides extra room for your feet to rest comfortably without creating excess dead space that would otherwise require your body heat to warm up.

This bag uses synthetic insulation. While synthetic fill is generally heavier and bulkier than down, it is more resilient in damp conditions and retains its insulating properties even if it gets wet, making it a reliable choice for demanding winter trips.

Yes, the bag comes with a dedicated sleep kit that includes a sleep mask and earplugs. These are integrated into the design philosophy of the bag, which aims to minimize light and sound distractions in challenging outdoor environments.