Norrøna Trollveggen Down850 -30C Sleeping Bag 185 cm Men's is a super-warm winter down sleeping bag designed for expedition use. The comfort temperature reaches down to -29 °C according to the EN23537-1:2016 test, and the bag can be used at temperatures as low as -40 °C. The fill is RDS-certified 850+ down, precisely distributed for optimal warmth and performance. The foot section features additional synthetic insulation over the toes to prevent compression of the down. The face fabric is a soft, recycled 10D nylon reinforced against tears and treated with PFC-free DWR. The lining is a soft 100% recycled 20D polyester.

The design is inspired by a down jacket to achieve a comfortable, roomy and thermally efficient fit. The tubular fit has been deliberately avoided to reduce the risk of cold spots. An internal, adjustable down collar retains warmth inside the bag. The centre zip features a three-way function for easy entry and exit as well as flexible ventilation options. Zip openings for the arms provide increased freedom of movement even inside the bag. Oversized down-filled baffles at the front and on the arm zips prevent heat loss.

The sleeping bag features an internal front pocket, reflective graphics, an external loop, an adjustable hood, attachment loops for a sleeping mat, a reinforced hood and heel section, and an enlarged front placket. Supplied with a compression bag and a storage bag.

Inner length: 205 cm. Body height: 175–195 cm. Down fill weight: 1607 g. Total weight: 2050 g.