내부 다운구조 We have created a series of icons that represent features found on Western Mountaineering sleeping bags. At a glance you will be able to tell which bags have single or double draft tubes, passive or full down collars, continuous baffles and the type of side block baffle. These icons appear throughout the catalog for each sleeping bag. A. Single Draft Tube E. Full Down Collar B. Passive Top Collar F. Single Side Block Baffle C. Continuous Baffle G. V-Block Side Baffle D. Interlocking Dra