ERDL pattern

ERDL pattern
The two variants of the ERDL pattern: The initial green-dominant version (top) and the succeeding brown-dominant version (bottom)
TypeMilitary camouflage pattern
Place of originUnited States
Service history
In service1948–1980s (U.S. military service)
Used byU.S. Marine Corps (former)
U.S. Navy (former)
U.S. Air Force (former)
U.S. Army (former)
See Users (for other non-U.S. users)
WarsVietnam War
Laotian Civil War
Cambodian Civil War
Invasion of Grenada
Operation Golden Pheasant
Invasion of Panama
Syrian Civil War
Production history
DesignerUnited States Army Engineer Research and Development Laboratory under Chief of Camouflage Adolph H. Humphreys and chief designer John Hopkins
Designed1948
Produced1948–1979

The ERDL pattern, also known as the Leaf pattern, is a camouflage pattern developed by the United States Army at its Engineer Research & Development Laboratories (ERDL) in 1948. It was not used until the Vietnam War, when it was issued to elite reconnaissance and special operations units beginning early 1967.

The pattern consists of four colors printed in an interlocking pattern. It was initially produced in a green-dominant colorway, consisting of large organic shapes in olive green and brown, black 'branches' and light green 'leaf highlights'. Shortly after it was first fielded in Vietnam a brown-dominant scheme with the light green replaced by light tan was introduced.