This lightweight hooded down jacket can be worn year-round for any type of mountain activity. Purposefully designed to be slim and compact for easy layering or packing in a pack, it features micro-chambers in the mid-body and shoulders, and smaller nano-chambers in the underarms for enhanced breathability. Filled with down and with a Pertex® Quantum outer layer, it is lightweight, breathable, warm, and windproof. Durable and versatile, it is one of our most popular styles, favored by climbers, hikers, and mountaineers worldwide.