This is a pair of Crye-style JGSDF combat pants designed and sold by Japanese military store S & Graf. Worn once and washed, ASIA SIZE Large. 60% poly, 20% vinylon, 20% cotton. I am a 34.5-35" waist and that was fine, but my 75% Gaijin butt and thighs couldn't fit comfortably running, jumping, etc.