The experience gained at the Tarawa campaign changed the design of the Marine combat uniform.
In March 1944, the P-44 set was officially released. The feature of this uniform is to carry the necessary combat equipment as much as possible, so there are more pockets for the P-44, and it also becomes structurally complicated. There were large pockets on each side of the front placket of the jacket, the left breast has a rectangular pocket with a pocket cover, and the words USMC printed on it. There is a button under the collar to facilitate the installation of a gas masks hood if necessary. Its cuff has a metal button and two buttonholes to tighten the cuff. Its color of P-44 is darker and more profound than P41.
Compared to P-41, there is no doubt that the P-44 is excellent and advanced in design. However, due to the late release, P-44 was not widely used. It was not until 1945 that the battle of Iwo Jima was deployed in small Numbers, many marines wore their old P-41 uniforms until the end of World War II.