Introducing an industry-leading design with likely the best warmth-to-weight ratio in the world. The lightweight, highly technical Lumina 200 Down Jacket weighs only 250g, of which 125g is 1,000 cuin Italian down for serious insulation. The jacket is extremely packable, taking up minimal room in your pack as you ascend further. Specialised down chambers maximise warmth so you can belay in sub-zero temperatures without the cold compromising your performance. Elasticated inner cuffs stop any heat from escaping.