Lightweight Cold Weather Underwear Set (LWCWUS) was developed to provide a moisture wicking, heat retentive, lightweight garment for moderate cold conditions in which polypropylene underwear is too warm.
The undershirt has long sleeves with elastic wrist cuffs. The wrist cuffs consist of double thickness of the basic fabric. The wrist cuffs have sufficient elasticity to prevent constriction of blood flow to the hands. The undershirt has a zipper that begins in the center of the collar top and extends to a level near the bottom of the user's chest. The zipper is designed for easy operation with a gloved hand, and provides the user with ventilation during strenuous activity and is a good match to the basic shade.