The Protective Combat Uniform (PCU) History

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090408-N-3714M-083 KODIAK, Alaska (April 8, 2009) SEAL Qualification Training candidates wade out of the Buskin River after spending five minutes in the near freezing water during a re-warming exercise. Candidates completed the re-warming exercise after spending 48 hours in the Alaskan mountains learning how to navigate through the rugged terrain and survive the frigid conditions. The 28-day cold-weather training course taught in Kodiak is part of a yearlong process to become a U.S. Navy SEAL. (U.S. Navy Photo by Mass Communication Specialist 2nd Class Erika N. Manzano/Released)

Instead of finding existing military systems as a starting point, Richard Elder from the Special Projects Team looked to COTS (civilian off the shelf) outdoor gear. After taking recommendations from Master Chief Scott Williams and consulting with extreme alpinist Mark Twight, PCU block 0 was born. Adhering to the Berry Amendmant requiring the DoD to give preference to American produced products, Nextec's Epic, and Malden Mills' polar fleece were utilized. ORC Industries produced levels 4, 5 and 6. SEKRI produced levels 1, 2, 3 and 7. Other companies contributing to the military's PCU system include YYK (zippers), Travis (Materials), 3M (insulation and Melody Miller (design). 

Even though there are seven layers in the system, it is not expected that on the coldest day you would wear all 15 items and then shed layers as it got warmer. Instead, PCU is most efficient when items are mixed and matched to cater to the anticipated conditions and activities of the operator.

090408-N-3714M-045 KODIAK, Alaska (April 8, 2009) A cold weather training instructor monitors SEAL Qualification Training candidates while they spend five minutes in near freezing water during a re-warming exercise. (U.S. Navy Photo by Mass Communication Specialist 2nd Class Erika N. Manzano/Released)

Elder stated that "The key to staying warm is moisture management." The latest Polartec fabrics by Malden Mills insulate and wick moisture away from the skin, while outer garments made with silicone-encapsulated fibers (called Epic by Nextec Applications, Inc.) allow sweat to escape while being highly water and wind-resistant. The idea is to remove moisture faster than you can produce it.


In 2004 Patagonia introduced their Military Advanced Regulator System (MARS) which includes a number of the PCU levels. They were also rumored to have been the designers behind the current PCU designs.

090406-N-6224W-025 KODIAK, Alaska (April 6, 2009) A SEAL Qualification Training candidate checks the gear of another member of his squad during a long-range land navigation exercise. (U.S. Navy Photo by Senior Chief Mass Communication Specialist Scott Williams/Released)

In July of 2008, ADS and Beyond Tactical announced that they were offering the entire 7-level system in both alpha green and coyote tan in either the complete system or as individual components. On top of providing standard sizing, Beyond Tactical customizes some of the garments to custom fit their customers. ADS also offers a DVD and a pocket guide to describe the PCU components and properly layering the system.

In 2012, Soldier Systems had the opportunity to see the development of the block 2 prototypes and reported on some of the upgrades to the various levels. 

Other companies that have in the past or currently manufacture the various levels of PCU include: Blackhawk! Industries, Insport, PatagoniaPropper, Ready One and Steps Inc.

The 16 garments that make up PCU
1. Crew neck silkweight T-Shirt (lvl1)
2. Silkweight boxer shorts (lvl1)
3. Long-Sleeve top (lvl1)
4. Long underwear (lvl1)
5. Long-Sleeve top (lvl2)
6. Long underwear (lvl2)
7. Mid layer jacket (lvl3)
8. Soft windshirt (lvl4)
9. Softshell top (lvl5)
10. Softshell pant (lvl5)
11. Hardshell top (lvl6)
12. Hardshell pant (lvl6)
13. Insulated coat (lvl7)
14. Insulated pant (lvl7)
15. Insulated vest (lvl7)
16. Combat shirt (lvl9)

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