Fabric - 65% Polyester 33% Cotton 2% Spandex - 265 gsm. Knee Fabric - 92% Nylon 8% Spandex. Stretch fabric for increased comfort and freedom of movement. Modern straight fit. High strength stretch knee reinforcement fabric. Crotch gusset with triple stitched seams for added strength. 1 Ruler pocket. 2 Pen partitions. 2 Back hip pockets. 2 Side waist pockets with wide openings.