Active insulation for high-intensity climbs. Tested by athletes as part of our Eiger Nordwand range, this vest can be worn as an outer layer or combined with a jacket. Quick-drying Polartec Alpha Direct polypropylene insulation provides warmth while allowing sweat to escape. The 20D Pertex Quantum Air outer fabric combines breathability with elasticity for greater freedom of movement during rock and ice verticals. With a durable design and easy-to-repair features, including a repairable YKK front zipper slider and a patch kit for on-the-go repairs, the Eiger Nordwand IN Flex Air Vest is an efficient and versatile option for alpine adventures.Features:- Fit: Athletic fit.Specifications:- PFC-free DWR. Recycled.- Pertex Quantum Air.- Polartec Alpha.