For sale is a pair of vintage Fox motocross pants in good condition. Quite good condition all things considered, given their intended use and age. See photos. They are tagged a 32" waist, probably would work if you really stretched them. I would say best fit a 30" waist comfortably. See below for size measurements.

Measurements

30" waist
10.5" front rise
29.5" long/inseam
9" leg opening