Cockpit USA CWU-55/P Military Spec Flight Jacket Review
- jamesjordan

- Jun 28
- 3 min read
The CWU-55/P is the military designation for the cold weather flight jacket specification that replaced the B-3 and MA-1 in many modern military aviation roles. Where the B-3 used sheepskin and the MA-1 used nylon, the CWU-55/P uses a Nomex or aramid-fiber outer shell with advanced insulation. Cockpit USA's version brings their heritage of military jacket production to this modern specification, creating a flight jacket that is militarily accurate and practically excellent.
What Does CWU-55/P Mean?
CWU stands for Cold Weather, Utility. The 55 is the design specification number, and /P indicates it is an individual equipment item rather than a kit. The CWU-55/P replaced earlier cold weather flight jackets in U.S. military service and is designed for use by pilots and aircrew who need meaningful warmth protection without the bulk of the B-3 sheepskin. It is lighter, more packable, and more compatible with modern flight suit systems than the B-3.
Construction Details
The Cockpit USA CWU-55/P follows military specifications for construction. The outer shell, insulation layer, and lining all meet the requirements of the Cold Weather Utility specification. The jacket features the characteristic CWU zipper and snap system, elastic waistband and cuffs, and the clean silhouette that defines modern military flight jackets. Cockpit USA's manufacturing standards — developed through decades of military contract work — are applied to every detail of this jacket.
Warmth vs the B-3
The CWU-55/P is warm but not in the same category as the B-3 sheepskin. The B-3 was designed for open cockpit conditions at extreme altitude — it is functionally overdressed for most ground-level uses. The CWU-55/P is designed for the cold weather experienced in modern, pressurized cockpits and on flight lines during cold operations. For everyday winter use, it is warm enough for most climates. For extreme cold or extended outdoor exposure, the B-3 is still the heavier-duty choice.
Who Is the CWU-55/P For?
The CWU-55/P is for buyers who want a modern military specification flight jacket rather than a WWII-era design. It is for pilots, crew members, and aviation enthusiasts who connect with current military aviation culture rather than the WWII heritage that the A-2 and B-3 represent. It is also an excellent practical jacket for buyers who want genuine military construction in a more modern silhouette.
CWU-55/P vs A-2 vs B-3
The A-2 is the classic leather flight jacket for temperate use with deep WWII heritage. The B-3 is the sheepskin jacket for extreme cold, also from the WWII era. The CWU-55/P is the modern cold weather specification — lighter than the B-3, warmer than the A-2, with a contemporary military look. Your choice depends on which era of aviation heritage speaks to you and what practical performance you need.
Where to Buy
The Cockpit USA CWU-55/P Military Spec Cold Weather Flight Jacket is available at Legendary USA at legendaryusa.com/products/cockpit-usa-mens-military-spec-cold-weather-flight-jacket. Browse the full Cockpit USA collection at legendaryusa.com/collections/cockpit-usa. Compare with the B-3 at legendaryusa.com/products/cockpit-usa-mens-b-3-sheepskin-bomber-jacket.
Frequently Asked Questions
What is the CWU-55/P used for in the military? It is used by pilots and aircrew as a cold weather flight jacket in modern military aviation, providing warmth during cold weather ground operations and flight.
Is the CWU-55/P warmer than the A-2? Yes. The CWU-55/P has more insulation than the leather A-2 and is designed specifically for cold weather use. The B-3 sheepskin remains warmer for extreme cold conditions.
Does the CWU-55/P have the same heritage feel as the A-2? No. The CWU-55/P represents the modern era of military aviation rather than the WWII leather jacket tradition. It is historically significant in its own right but carries a different heritage character.
Is Legendary USA an authorized Cockpit USA dealer? Yes. All Cockpit USA products at Legendary USA are genuine with full manufacturer backing.
Can I wear the CWU-55/P as a daily jacket? Yes. The military spec construction makes it durable and practical for everyday cold weather use.

