An industry-leading design for your best-ever climbs. The Lumina 100 Down Jacket weighs only 170g, with 70g of 1,000 cuin Italian down for next-level insulation and a ground-breaking warmth-to-weight ratio. For mountaineers and technical alpinists, this versatile, lightweight layer compresses to the size of an apple, making it virtually unnoticeable in your pack. When it’s time to belay or take a break in sub-zero conditions, specialised down chambers maximise the jacket’s thermal performance for unrivaled warmth.