The US Military Coyote Brown Cold Weather Polypropylene Undershirt is a thermal base layer designed to provide warmth and moisture management in cold environments. It serves as the first insulating layer under field uniforms.

• Color: Coyote Brown
• Material: Polypropylene thermal knit fabric
• Function: Cold weather base layer for insulation and moisture wicking

Issued to U.S. military personnel as part of the cold weather clothing system.