USGI BDU Trousers Woodland RipstopU. S. Army genuine issue woodland camouflage BDU pants in rip stop fabric. These are most likely dated from the 1990's to 2000's. The BDU (Battle Dress Uniform) design was instigated by the U. S. Army in the 1980's and became a popular style among civilians as well. A high quality and rugged construction has ensured a long lifetime of use. These are still perfectly suited for paintball, airsoft, and hunting. Nothing beats genuine surplus for quality,