This is a phenomenal jacket. I’ve never before come across one anything like this warm at this low a weight. I’ve also never come across 1000 fill power down before. The Hispar K is designed for expeditions and to keep the wearer warm down to -25°C, which makes it rather over-specified for most UK use unless you really, really feel the cold. The shell is water-resistant but the down isn’t hydrophobic – but then I can’t imagine wearing this in weather warm enough for it to rain. The design is excellent. The Velcro-closed hood is amazingly warm and the insulated pockets lie above a pack hipbelt. The Hispar K is longer than most insulated jackets too and has a waist drawcord as well as a hem one. There’s only one drawback to this marvellous jacket and that’s the cost. But if you want an incredibly warm jacket at the lowest possible weight this is the one.