Genuine Government issue. Army tested and issued as part of the Military's Extreme Cold Weather System. Thick 100% polypropylene is lightweight, warm as wool and as soft as cotton. It wicks away moisture from the skin so you remain warm and dry even during heavy exertion. Top (sold separately) has a double layer zip-up neck placket, turtleneck collar and knit cuffs. Bottoms have knit cuffs and elastic waist. Condition: New.