Mammut Perform Fiber Bag

The Mammut Perform Fiber Bag is rated for temperatures down to -7C (19.4F), making it a solid choice for late autumn or early spring camping trips where temperatures hover near freezing.

The central two-way zipper allows you to easily vent the bag from either the top or the bottom without having to fully unzip it. This makes it much easier to regulate your body temperature during the night without letting in too much cold air.

Yes, the hood is constructed with specialized noise-reducing materials. This is designed to minimize the crinkling sound often associated with synthetic sleeping bags, helping you stay asleep if you move around during the night.

Yes, it includes a sleep mask and earplugs. These are integrated into the design to help block out light and environmental noise, which is particularly helpful if you are camping in busy campgrounds or dealing with early sunrises.

The bag features a PFC-free DWR (Durable Water Repellent) treatment. While this helps shed light moisture and condensation, it is not fully waterproof, so you should still use a ground sheet or tent footprint to keep the bottom of the bag dry.

Mammut designed this bag with an optimized, ergonomic shape that balances thermal efficiency with extra room. While it is a mummy bag, the anatomical foot box is specifically shaped to provide more space for your feet, preventing that cramped feeling often found in narrower bags.