WAIPER has created original pants to perfectly complement the popular US Army fleece jacket, based on the second generation (Generation 2) of the US Army's layering system "ECWCS," specifically the Layer 2, commonly known as "GEN2 Fleece." The thick fleece used for the body is the same POLARTEC CLASSIC 300 from the US, as used in the real thing. Following the design of the US Army's IPFU training pants, the hip and knee areas, which are prone to friction, are made of nylon, resulting in a tough design despite being fleece pants. Sold out!