Used by the United States Coast Guard, the Gentex special operations headset adaptable helmets (SOHAH) have become the standard issued helmet for both maritime and fixed wing aircraft platforms. The configuration provides the user with the luxury to interface with headsets that have large earcups and night vision goggles. Gentex SOHAH helmets are available in two sizes; in both ballistic and non-ballistic versions and are offered in a variety of shell colors.