M81 Woodland Camo Twill Tactical BDU ShirtM81 Woodland Camo Twill Tactical BDU Shirt This iconic camo pattern was originally created in the early 1980s as an improvement to the ERDL leaf pattern. The pattern underwent testing for a few years before its debut in 1981. Known as Woodland Camo, the design gets the nickname from collectors "M81" meaning "Model 1981". This pattern screams retro and the coolness factor is unmatched! 55 45 cotton polyester blend Reinforced elbows to prevent blowouts