located in the contiguous United States. Boots come in two versions: black smooth leather boots, and black suede no-shine boots for optional wear while assigned to non-shipboard commands. Shipboard Working Uniform The U.S. Navy issued a new model coverall for use as a shipboard working uniform beginning in early 2014. The new flame resistant variant (FRV) coverall is used aboard all ships. It has largely replaced for shipboard use polyester cotton blend coveralls that provided inadequate fire protection and the NWU Type I for the same reason. The all cotton FRVs are dark blue in color compared to the older coveralls, which are lighter. They use rectangular velcro-backed nametags similar to those worn on flight crew suits, rather than the nametapes of the previous coverall. U.S. Fleet Forces Command (FFC) continues a multi-phase wear test of improved flame resistant variant (IFRV) working uniform components for shipboard wear. FFC most recently conducted in-depth focus groups with fleet sailors aimed at refining the design of the IFRV coverall. The IFRV coverall was approved for issue on 17 January 2017. Additional feedback from the focus groups, subsequently validated by a senior level working group, resulted in the preliminary design of a more professional looking two-piece utility shipboard uniform that can be worn both at sea and operational support jobs ashore. Wear tests of the prototype two-piece variants are expected to occur in 2017. Coats All enlisted sailors may wear the navy blue pea coat, with a rate insignia on the left sleeve for petty officer third class and higher, a navy blue "All Weather Coat" with rate insignia worn on the collar, or a navy blue Working Uniform Jacket with rate insignia worn on the collar. Officers and chief petty officers may wear the calf-length wool "bridge coat" or waist-length reefer, with gold buttons and rank insignia worn on the shoulder boards, or the all-weather coat, with rank insignia also worn on the shoulder or collar, depending on rank. All sailors are authorized to wear the "Eisenhower" jacket with short-sleeved service uniforms with appropriate rank devices on the shoulder boards. The "Eisenhower" jacket is a waist length, black jacket with knit cuffs, and is named for its association with Dwight D. Eisenhower. The khaki windbreaker, previously authorized only with the service khaki uniform, was discontinued on 30 September 2016. Naval aviators, naval flight officers, naval flight surgeons, naval aviation physiologists, and naval aircrewmen