Rab Mythic -12C / 10F

Rab Mythic -12C / 10F is a featherweight unisex down winter sleeping bag built for a very high warmth-to-pack ratio in serious cold. The tapered mummy profile, heat-reflective lining, and stabilised down chambers help conserve body heat efficiently during fast-moving mountain trips. A half-length zip with an insulated baffle reduces drafts while keeping overall bulk low. It also comes with both a compression stuff sack for travel and a storage sack for keeping the loft at home.

• Ultralight, high-warmth unisex down winter sleeping bag for cold-weather fastpacking and alpinism
• 900 fill power European goose down with a fluorocarbon free hydrophobic finish to handle damp conditions better
• L.O.F.T 3D construction with helix-shaped baffles to reduce down shifting and maintain even insulation
• Thermo Ionic Lining Technology (Tilt) lining designed to reflect heat back toward the body
• Sidewall baffles support side sleeping by reducing cold spots and keeping seams off the ground contact areas
• Tapered mummy shape to cut dead air space and keep packed volume smaller
• Half-length zip with an insulated zip baffle to limit heat loss along the zipper
• Hood drawcord and a down-filled neck collar help seal warmth around the head and shoulders
• Anatomically shaped foot box for a more natural sleeping position
• Includes a lightweight dry bag compression stuff sack plus a zipped storage sack with a water-resistant base
• Hand-filled in the UK

Technical Features
Temperature rating: ISO (23537-1:2022)
Comfort: -5 °C (23 °F)
Limit: -12 °C (10 °F)
Extreme: -33 °C (-27 °F)

Weight
920 g (2 lb 0.45 oz)

Dimensions
Packed size: 20 x 35 cm (7.9 in x 13.8 in)

Materials Main fabric: 10d pertex quantum ripstop (26 g/m²) with fluorocarbon free DWR
Fabric lining: 10d recycled atmos (28 gsm) with thermo ionic lining technology (Tilt)
Insulation: 900 fill power european goose down with grangers fluorocarbon free hydrophobic finish (590 g / 20.8 oz)