The new design builds upon the success of the previous model. By using POLARTEC® Alpha insulation and PERTEX® Quantum Air material for the outer part, we’ve reduced weight, added wind resistance and overall functionality. All of this ranks the Bora among the top-notch products designed for cold weather activities such as ski mountaineering, classic mountaineering, and alpine hiking. It is great to use as a classic outer layer, but even more so as an insulating layer suitable for a variety of outdoor activities. The side elastic panels guarantee plenty of unrestricted active movement. This jacket serves as a reserve option to fit into your backpack, giving you plenty of thermal comfort when needed.