vintage army issue brown quilted liner pants

vintage 80s army issue brown quilted nylon liner pants. some discolouration on the lining and a tiny bit on the front but nothing major. the back waist is extended to tuck into your upper layers (shown folded down in lead photo) no tags but fits like a large. waistband is 17" to 19", hip 22", rise 12", inseam is about 28"