US Army ECWCS GEN2 POLARTEC CLASSIC 300 This is a fleece pants from WAIPER.inc. Color: Navy US Army ECWCS GEN2 Fleece Pants POLARTEC CLASSIC 300 WAIPER.inc Item No.: WP1044 This is the "GEN2 Fleece," also known as Layer 2, which is part of the five-layer "ECWCS" (Extended Cold Weather Clothing System) of the US Army's layering system. Size: S Waist: 66-85cm Inseam: 68cm Total Length: 93cm Leg Opening: 20cm (approx.) Used only a few times. It is not new, but in good condition. Will be shipped via Rakuraku Mercari.