most recognizable part of the uniform is the standardized field jacket. It was longer than the M-1941 jacket, coming down to the upper thighs, had a detachable hood, drawstring waist, two large breast pockets and two skirt pockets. It was colored olive drab shade no. 7 (OD7), a darker and greener shade than the previous field jacket. The trousers were made out of the same cotton sateen material. They were made similarly to the khaki trousers, but featured a looser fit for mobility and durability, and included button tabs at the waist in order to cinch the waist in. The herringbone twill fatigue uniform was also changed to OD7, with the trousers redesigned to have two large cargo pockets on the side. The latter was done as eliminating the previous side and back pockets saved costs and time in manufacture. These items were designed to be layered either under the M1943 winter uniform or alone as a warm-weather garment. To replace the separate canvas leggings, new M-1943 Combat Service Boots included an integrated leather cuff that was fastened by two buckles. The uniform was designed to be warm in winter by use of separate liners for the jackets and trousers, both made of faux fur "pile". The trouser pile liners were dropped from the final system in favor of the previous wool trousers. The jacket liner was a separate cotton-shell jacket with two slash pockets and button and loop fasteners, but it was rarely issued in practice during World War II as it was intended to be replaced by the M-1944 Eisenhower jacket, though that was made a garrison-only item before the Korean War. Wartime use The uniform was tested in Italy in 1943 by the 45th Infantry Division and the 3rd Infantry Division but some GIs (including Bill Mauldin) claim that non-combatant officers and enlisted personnel would use their position in the rear to get the new uniform, delaying the ultimate field testing in Italy for some time longer. This, along with shipping delays after D-Day kept this uniform from widespread use in Europe until late 1944. After D-Day, Paratroopers were issued complete M1943 uniforms, and infantry units began getting the uniform parts here and there. Paratroopers were generally the only ones to modify the uniform, as they would sometimes add their own trouser cargo pockets. They kept their older "Corcoran" paratrooper boots instead of the new M43 buckle