USN HOOK DECK JACKET
The US Navy Deck Jacket – Hook System
In the years leading up to and during World War II, the United States Navy designed and distributed a wide variety of clothing and equipment adapted to harsh weather conditions. Among these items, winter jackets, commonly known as deck jackets , became essential pieces of sailors' wardrobes during the conflict and remain highly sought after by collectors today.


The first deck jackets used during the war were typically made of dark blue waterproof canvas and featured a front zipper. Their design closely resembled the US Army's winter combat jacket , also known as the Tanker Jacket . In 1943, an improved model was introduced, bringing a major innovation to the closure system, which would not only overcome the limitations of zippers but also define a style that has become iconic over time.
A Response to Field Needs
The experience gained during the early years of the war greatly influenced the design of this new version. As early as 1942, while American troops were engaged in combat, a problem arose: it was crucial that sailors involved in land operations or landings be immediately identifiable within army units. The risk of confusion was real, as naval uniforms differed considerably from those of the army. There was even concern that some inexperienced soldiers might mistake American sailors for enemy forces, particularly those defending the coasts and wearing similar uniforms.
To mitigate this risk, a solution was adopted at the end of 1942: the new deck jackets were marked on the back with a large "US NAVY" inscription, printed in capital letters using semi-reflective silver ink. This visual modification was applied to the zippered models still in production before the introduction of the 1943 pattern.


A Closure Inspired by Firefighter Jackets
The 1943 model retained several features of its predecessor, notably its waterproof celluloid plastic lining sandwiched between a robust outer layer and a Melton wool inner lining. However, the main improvement lay in its redesigned front closure system .
Previous jackets used a metal zipper, a device that quickly proved inadequate in cold and wet environments. Water splashed on the zipper could freeze, rendering it unusable, and the thick gloves worn by sailors made it even more difficult to operate. When the zipper became jammed with ice, it was virtually unusable, which could be problematic in operational conditions.
To solve this problem, the navy drew inspiration from the firefighters' jackets of the time , which were designed to be handled even with thick gloves and in extreme conditions. These jackets used a system of hinged metal hooks , allowing the jacket to be opened and closed effortlessly, even when covered in ice or frost. This innovative mechanism was adopted for the new deck jackets of 1943.


Variations and Heritage
There are several variations of this hook-and-eye style jacket. Most original jackets featured patch pockets shaped like "D"s and a single hook at the bottom. However, some versions without these pockets were produced, and there are even models with a double hook closure at the bottom. These slight differences often resulted from adjustments made by different manufacturers to meet contemporary needs.
This new deck jacket quickly became emblematic of US Navy operations during World War II. Even today, it remains a prized collector's item , a symbol of an era and enduring military clothing craftsmanship.



