Propper BDUs are sewn to military specification MIL-T-44047E and feature six pockets, four with button flaps. Both seat and knee are double-reinforced and this trouser also has felled inseam, outseam and seat seam. Other features include fused pocket flaps, a zip fly, adjustable waist tabs with 4 bar tacks and drain holes in the Bellows pockets. The nylon drawstring leg closures are fused knotted and tacked. It is made from Battle Rip, a tactical uniform fabric that is comfortable, durable and has excellent color integrity. This is an all-season weight, 65% polyester and 35% cotton fabric manufactured in a ripstop weave. Battle Rip is our fabric of choice for the public safety community.