This Gentex HALO Parachutist/Flight Helmet is a high-quality, original item that will work well as a parachutist helmet or as a flight helmet for civilian aerobatic and warbird aircraft. It comes with both a dark tinted visor and clear visor that are interchangeable. Integral in the helmet are a dynamic mic boom and internal headphone speakers. Fittings on the helmet allow the mic boom to be mounted on the left or right side. A plug in adapter converting the single military three stage plug to separate microphone and headphone plugs for general aviation use is also included. This helmet also has fittings for an oxygen mask.
I believe the size is small, but it may be medium. I am an average to smaller sized male at 5 ft 6 in tall and it fits me well as photographed with some thin padding behind the ear speakers. The helmet comes with an extensive set of fitting pads for creating a custom fit.