Fabric: 97% Cotton, 3% Spandex - 260 gsm. Panel: 94% Polyester 6% Spandex. Contrast 4 way stretch panel at back of knee and in crotch provide stretch in every direction to increase movement and durability. Soft stretch cotton provides increased freedom of movement and comfort. Two Large pockets with black bonded zips and Syzmik rubber zipper heads.