Our lightest most packable waterproof jacket. This lightweight shell jacket is made for all-year mountaineering but works great for general outdoor activities all year from trekking to ski touring. It's very packable and therefore easy to always bring along. We use the dri1 fabric because it is thin light packable durable windproof waterproof (20,000 mm) and breathable. The dri1 fabric is made of recycled post-consumer fibers from previous products. The inside of this textile creates a small microclimate between you and the membrane. In addition the dri1 has a PFC-free impregnation.