Ripstop fabric is a fine fabric in the base and can be seen by the calculator box structure: every few millimetres a stronger warp or weft thread runs through the fabric. If the material tears, the tear does not run unbraked through the entire surface, but stops at the stronger rip stop thread. Back reinforcement, knee reinforcement, fly with concealed button placket, adjustable waistband. 2 side pockets, 2 large patch pockets, 2 large leg pockets, 2 back pockets with flap and button closure, leg cuffs with drawstring