60% cotton, 40% polyester, ripstop; Stretch panels; Pre-bent knees; CORDURA reinforced nail pockets, back pockets, ruler pocket, leg pockets, knees and hem, CORDURA reinforced side pocket for ruler tape; Plastic zipper fly; Loops, one with D ring; Inside leg seam with double stitching; Blaklader embroidery back; Back pockets with bellow, reinforced; Leg pocket with pen pocket, extra pocket and telephone pocket, Leg pocket with zipper, Thigh pocket with zipper