A very pretty insulated jacket with full-length zipper and stretchy panels in the sides and underarm.
A fleecy- lined Polartec Power Stretch material goes up the whole sides and makes for a jacket which won’t restrict you as you do some wintery activities, and it continues down and over the backs of the hand to keep your digits warm in the wind.
The main body of the Biwak is made from a breathable man-made insulation called Polartec Alpha, which is claimed to be the most breathable insulation on the market.
And as you’d expect from Mammut, the finish and detailing are pretty top-notch.
The Biwak is available now from selected retailers, but at £220 it’s an investment piece.
Also available in orange, and blue.