Ajungilak Altitude Winter (2012)

On more adventurous expeditions when you could be sleeping in a tent for many nights, bivvying in the open or digging a snowhole to find shelter, you need the ultimate in winter sleeping bag protection. The Ajungilak Altitude Winter uses a Shelter TX fabric that is fully waterproof and breathable, so there is no way that water can dampen the down and reduce its insulating ability. There is also a complex arrangement of baffles inside the bag to ensure that the down remains in place to prevent cold spots. The 11-chamber foot is wedge-shaped for maximum protection of
the feet, while the hood is incredibly well-shaped to fit the head and even features a fleece panel to protect the face from draughts if needed. This is a bag that offers supreme performance levels, making it ideal for expeditions where you cannot slope off to a B&B if you decide it is a bit chillier than expected!

 

Outer fabric Shelter TX, Performance TX DWR

Inner fabric Tough TX

Insulation 95/5 down, 800 fill power

Compressed packed size 27x21cm

Weight 1778g

Lower comfort temperature rating -17 deg C

Website www.mammut.ch

Verdict

The Ajungilak Altitude Winter is the best waterproof down bag in our review.

 

Review by Graham Thompson

First published in Trail magazine March 2012