These darted pants are not only darted at the knee but the center seam on the leg is actually one big dart that travels up the leg, reaching to the waist. Both the back and front of the the pants have these large darts. The pant converts into past knee shorts for extra breathability for warmer days. The fly features a flap reveling a zipper fly. The elasticated waist accommodates sizes 30 - 40. These pants are rendered in a black 45% wool 55% cotton twill.