- Nylon
- Ultralight Weight for Fast & Light Adventures | Groundbreaking sleeping bag built for summer alpinism, backpacking, trekking, and mountaineering.
- 900-Fill Down Insulation | Ultra-lofty down designed with a Nikwax hydrophobic (fluorocarbon-free) finish to retain its lofty warmth in wetter, damper climates.
- Atmos Fabric | Rab’s lightest, most packable fabric is used in the outer and liner; the outer is durably water-resistant, and the liner features TILT to reflect your body warmth back your way.
- Alpine-Ready Features | 1/8-length YKK main zipper; adjustable hood; ergonomically-shaped hood, footbox, and internal collar; dry bag compression stuff sack included.
- Specs | [Best Use] Mountaineering, Trekking; [Temperature Rating] (Comfort) 44F, (Sleep Limit) 32F, (Extreme) 10F; [Weight] 15.5oz; [Insulation] 900-Fill Down; [Outer] 10D Recycled Atmos, Fluorocarbon-Free DWR; [Pack Size] 12.6in x 6.3in
The Mythic Ultra 180 redefines what it means to be ‘ultralightâ€. Using a world-first, heat-reflective fabric treatment called Thermo Ionic Lining Technology, this is premium protection for those counting every last gram. Designed and constructed by our in-house technicians on the back of 40 years of hard-won mountain expertise, the award-winning Mythic Ultra 180 is one of the worldâ€s most advanced lightweight sleeping bags. Though constructed with an exceptionally light ripstop 7D outer and filled with high-loft 900 plus fill power European goose down, the really special part is the inner lining. This incorporates world-first Thermo Ionic Lining Technology (TILT), which adds a titanium coating to the fibres to reflect heat back towards your body, enabling it to significantly boost warmth without increasing weight, compromising breathability or sacrificing any features. Weighing just 400g, the stripped back insulation of our TILT-equipped Mythic Ultra 180 is the ultimate expression of performance without penalty.