Mammut Tyin MTI 5-Season 180L Synthetic Insulated Winter Expedition Sleeping Bag Bison
Designed for extreme cold and winter expedition use, the Mammut Tyin MTI 5-Season 180L sleeping bag delivers dependable warmth and durability in challenging conditions.
Mammut Tyin MTI 5-Season 180L Synthetic Insulated Winter Expedition Sleeping Bag Bison
The Mammut Tyin MTI 5-Season 180L sleeping bag is built to perform in demanding environments where cold, moisture and wind are constant challenges. Its synthetic insulation system offers excellent thermal retention even if the bag gets damp, making it especially suitable for winter trekking, expeditions and alpine campsites.
Advanced Moisture Protection & Comfort
Featuring shelterTX™ zones around the foot box and hood, the Tyin MTI enhances moisture resistance at critical areas, helping maintain insulation efficiency in wet conditions. A warm draft collar and ergonomic hood design minimise heat loss around the head and neck for improved sleep comfort.
Durable Construction for Expedition Use
This sleeping bag utilises high strength outer fabrics and synthetic Ajungilak® MTI™ Endurance fill that is robust and resilient for repeated outdoor use. The mummy shape, along with structured insulation layers at the head and foot areas, enhances heat distribution and durability in extreme conditions. An internal zippered pocket provides convenient storage for small items.
Versatile & Outdoor-Ready
With a performance focus on cold and damp climates, the Tyin MTI 5-Season is ideal for multi-day winter treks, alpine travel, mountaineering and extreme weather expeditions. Its design balances thermal efficiency, rugged durability and comfort for serious outdoor adventurers.
Key Features & Technical Details
Material — Outer Fabric: 100% Polyamide (high-strength ripstop)
Material — Lining: 100% Polyester
Insulation — Ajungilak® MTI™ Endurance 100% Polyester synthetic fill for cold performance
Moisture Protection — shelterTX™ at foot box & hood for enhanced damp resistance
Temperature Performance — Comfort approx. −13 °C, Limit −25 °C (varies by standard/test)
Shape — Mummy construction for optimal heat retention
Hood — 3D hood with multi-layer fibre insulation
Draft Collar — Integrated warm collar to reduce thermal loss
Zipper — Left-side insulated zipper with draft tube
Pocket — Internal zipper pocket for essentials
Packed Volume — Approx. 24.7 l (180 cm size)
Weight — Approx. 2.75 kg (180 cm size)
Use — Winter camping, expeditions, alpine trekking, cold weather sleep system
