The ERDL CAMO patterns, available on CAMO HQ, originated in the United States in 1948 as one of the earliest modern camouflage designs, developed by the U.S. Army’s Engineer Research & Development Laboratory (ERDL). This pattern was officially introduced during the Vietnam War, where its dense green and brown foliage design provided superior concealment in jungle environments compared to earlier patterns. ERDL was later adapted into different color variations, including highland (brown-dominant) and lowland (green-dominant) versions, influencing many future camouflage designs. Over time, countries such as South Vietnam, the Philippines, and Spain adopted their own variations. ERDL served as the foundation for later designs like U.S. M81 Woodland and various NATO camouflage patterns. The ERDL CAMO collection on CAMO HQ features historical reproductions and global adaptations, making it an essential choice for collectors, reenactors, and camo enthusiasts who appreciate the legacy of this influential pattern.