The Shield is a lightweight, four-season mountaineering tent with a single door and single-wall design meant to be taken to the highest elevations, withstand the strongest winds, and keep you warm in the coldest climates. This bomber tent is constructed with ultralight nylon, 3-layer waterproof, breathable fabric with a microporous membrane and tricot layer to enhance moisture management and provide protection from the elements. The Accessory Vestibule (sold separately) adds covered entry and exit, plus additional gear storage when you need a little more room to spread out undercover.