The same style seen used to add extra sleeping comfort in the rapidly changing temps of Vietnam. U.S. troops quickly discovered that while day temps might reach 100ºF, night temps could quickly drop down to 50ºF. This Liner is designed intentionally thin for lightweight, no-bulk packing. Yet the polyester lining manages to be both soft and insulating for adding a blanket of warmth when needed. Combined with a standard U.S. military poncho or similar, the result is an improvised sleep system that deals with cool night temperatures in a variety of conditions.
