It was originally developed for shipboard use, but proved unsuitable for shipboard environments and was discontinued in 2019. Type II is a desert digital pattern currently restricted to SEALs and other sailors such as Seabees assigned to Naval Special Warfare Units when in desert environments. Type III is a woodland digital pattern for sailors in shore commands and riverine units. The camouflage patterns are similar to the MARPAT worn on the Marine Corps Combat Utility Uniform by U.S. Marines. The colors of the NWU Type I, according to the U.S. Navy, were intended to reflect the navy's heritage and connection to seaborne operations, while hiding wear and stains, something unavoidable with the utilities and working khakis used previously. The colors were chosen to match the most commonly used paint colors aboard ship, extending the lifetime of the uniform on long deployments where uniforms often come into contact with freshly painted surfaces. An anchor, USS Constitution, and eagle (ACE) emblem is embroidered on the left breast pocket on all Type I NWUs. Accessories included a navy blue cotton T-shirt, an eight-point utility cover, and a web belt with closed buckle. The uniform was worn with rank insignia on both collar points and on the front panel of the utility cover, with sew-on name and "U.S. NAVY" tapes, also on the new digital background pattern, having gold-colored lettering for officers, CPOs and midshipmen. All ranks below CPO wore silver-lettered name tapes. The NWU Type I was phased into service beginning in January 2009., but was phased out as of 1 October 2019. The Type II and III patterns are overall darker than their respective MARPAT progenitors, modified with different color shades and a vertically-aligned pixel pattern for the woodland version (compared to the horizontal alignment of woodland MARPAT). The additional patterns addressed the fact that the blue and grey Type I pattern was not meant for a tactical environment. Rank insignia is embroidered and worn on a tab in the center of the torso, name and "U.S. Navy" taps are embroidered in brown (Type II) or black (Type III). Backlash from Marines, including an objection from Commandant Conway, led to restrictions when wear regulations were released in 2010. The Type II is restricted for wear to Naval Special Warfare personnel, while Type III was restricted to Navy ground units until late 2016. The uniforms are primarily composed of a 50/50 nylon and