Dive into the most extreme adventures with Sea to Summit's Alpine sleeping bag, specially designed for cold, harsh environments. Featuring Ultra-Sec 850+ Loft down, this lightweight sleeping bag offers exceptional insulation while being extremely compressible.

Ultra-Sec 850+ Loft down ensures maximum warmth with minimum down, thanks to its high loft. Certified RDS (Responsible Down Standard), this down comes from responsible sources and is treated with the environmentally-friendly Ultra-Dry Down treatment, giving it enhanced water resistance.

The QuiltLock system allows you to attach a comforter to the sleeping bag, adding thermal performance and versatility to your sleeping system, suitable for both summer adventures and winter expeditions.

Recycled 10D nylon construction offers extra protection against moisture, while the Free Flow Zip system, with its modified zipper to maximize warmth, ensures optimum comfort even in extreme conditions.

The double waterproof collar and anti-draft tube ensure optimum heat retention, while the Expedition Mummy cut provides ample space for both the sleeper and his gear.

Whether you're tackling snow-capped peaks or camping under the northern lights, Sea to Summit 's Alpine sleeping bag is your reliable ally for peaceful, restorative nights in the great outdoors.

Additional information:

MAX USER SIZE: R: < 185 cm / L: < 198 cm

TOTAL WEIGHT : R : 1459 g / L : 1645 g

GARNISSAGE WEIGHT: R: 1000 g / L: 1135 g

COMPRESSED BAG SIZE: 26 L

COMFORT TEMPERATURE : -19°C | -2°F

TEMPERATURE LIMIT : -29°C | -20°F