Fatigue Fashion: History of the OG-107 Trousers

Fatigue-Fashion-History-of-the-OG-107-Trousers  October 1957 California National Guard Individual Weapons Championship Matches held at Fort Ord. Members of the California Army National Guard and California National Guard Reserve (now California State Military Reserve) competed for places at the National Matches at Camp Perry, OH. Image Via: California Military Department Historical Collection

Fatigue pants are everywhere right now. From Uniqlo to Engineered Garments, everyone has their take on the iconic trousers. You can buy them in any possible shade and material, but they all owe homage to one of the U.S. Army’s most prolific pieces of kit: the OG-107 fatigue trouser.


Named for the color of the 8.5oz. carded cotton sateen that they were made of, the OG (Olive Green) utility uniform would end up being one of the longest issued uniforms in the U.S. Army. The OG-107’s first saw production in 1952 and, after a few variations, were phased out by 1981, becoming the defining uniform of the Cold War and Vietnam in the process.


Fatigue-Fashion-History-of-the-OG-107-Trousers-Pressed-and-starched-OG-107s-at-Camp-Roberts,-CA-1965.-Image-Via -California-Military-Department-Historical-Collection

Pressed and starched OG-107s at Camp Roberts, CA 1965. Image via  California Military Department Historical Collection

Like most mid-century U.S. military uniforms and equipment, the industrial scale and large contracts (i.e. the military industrial complex) ensured that millions of OG-107 uniforms would enter the civilian market, first via surplus and then, as many military uniforms do, trickle up into the fashion industry.

The OG-107 trousers were introduced in 1952, but to truly understand where they came from and how they would eventually be utilized, you need to go back to the 1949 Army Uniform Board where the complete overhaul of the Army’s uniforms started. The introduction of not only the uniform but the color OG-107 itself is an important and purposeful change from the Olive Drab color of WWII. The Army charted a new course in the Cold War and looked to define itself as a world power projecting its heavily starched Olive Green uniforms across the globe.


Soldiers working at the Sierra Army Depot in California. You can make out the waist adjusting tab on the OG-107's of the soldier in the center. Image Via California Military Department Historical

Soldiers working at the Sierra Army Depot in California.
You can make out the waist adjusting tab on the OG-107’s of the soldier in the center.
Image via California Military Department Historical Collection

OG-107 Design

The design of the OG-107 trousers was incredibly simple and remained nearly unchanged during its issued lifespan. The trousers and matching “jacket”—worn as a shirt—were made of 8.5oz. carded cotton sateen in the new Army standard OG-107 color. This fabric was the result of textile research conducted during the Korean War to find a more durable replacement for the WWII-era herringbone twill (HBT) but retained its light weight. The HBT uniform had started out as fatigue wear, but with the reality of modern warfare, these more casual and practical uniforms became battle dress in WWII and Korea.


While officially the US Army used the term “utility uniform” to describe the new OG-107’s, soldiers continued to refer to them as fatigues as they had HBTs. The first specification for the trousers was dated November 21, 1952, and included all the hallmarks we recognize today: two large front patch pockets, two rear patch pockets with buttons flap closures, and size adjustment tabs. The simple design mimicked a few other US military trousers over the previous decades. Front facing patch pockets can be seen on pre-WWII US Army denim dungarees and on models of the USMC P41 trousers. The 1947 model HBT trousers, in fact, are essentially the same design as the OG-107 trousers.


Post-1964 OG-107 trousers marked with true measurements and without waist adjusting tabs. Photo via the author.

The two modifications to the trousers came in late 1964 and in 1975. First, in 1964 the jacket and trousers changed from “small”, “medium”, “large” to true measurements (i.e. “32×30”) and with this the waist adjustment tabs were removed. As the Vietnam War ground on and the casualization of the military started with its transition to an all-volunteer force, emphasis on starched and tailored fatigues waned. To this effect, the Army introduced a new “durable press” polyester cotton blend trousers in an OG-507 shade. This later model can be weeded out by looking for a bright yellow internal tag with care instructions and a zipper fly. 

A soldier models the durable press OG-507 fatigue uniform at the U.S. Army Natick Soldier Research, Development & Engineering Center. April 8, 1977. Image Via Digital Commonwealth

A soldier models the durable press OG-507 fatigue uniform at the U.S. Army Natick Soldier Research, Development & Engineering Center. April 8, 1977. Image via Digital Commonwealth

The telltale yellow tag of the OG-507s. Image Via Saunders Militaria

The telltale yellow tag of the OG-507s. Image via Saunders Militaria

So whether you’re following in the footsteps of military style, the anti-war subversiveness of the Vietnam War protesters, or are simply looking for a cheap and eco-conscious alternative, the OG-107 trouser will be around. Though it defined army uniforms for decades, it may come to define your wardrobe for at least a few seasons.

Click on the picture to buy OG107 FATIGUE PANTS👇