Functionality: Stretch panel in crotch; Reinforcement: CORDURA reinforced back pockets, CORDURA reinforced side pocket for ruler tape; Details: Plastic zipper fly, Side hammer loop, Loops (one with D ring), Inner leg seam with 3-needle stitching, Blaklader embroidery back; Pockets: Reinforced back pockets with bellow, Leg pocket with flap and telephone and pen pocket, Leg pocket with zipper; Laundering advice: No bleaching, No tumble-drying, Ironing - low, No dry-cleaning, 60C/140F; Certification: Oeko-Tex std 100, SE 23-302, RISE