Aviators, Naval Flight Officers, and Naval Aircrewmen are authorized to wear green or desert flight suits (made of nomex for fire protection), with rank insignia for officers stitched on the shoulders, and a name tag/warfare insignia on the left breast pocket. Either a Command/Navy ballcap or a Khaki Garrison Cap (for Commissioned Officers and CPOs) are worn with this uniform. Green flight suits are the standard wear; however, wing commanders may authorize desert flight suits for personnel located in hot climates. As of 2012, flight suits may now be worn off base in the same manner as the Navy Working Uniform.