Abstract: An adjustable head harness for supporting an interface device near a face of a head includes a headband section, an adjustable crown support section, an upper support section and a lower support section. The headband section is adapted to fit over a portion of the head and configured to secure the adjustable head harness to the head. The headband section has connectors disposed at selected portions of the headband section. The adjustable crown support section is configured to prevent a slipping of the headband section in a downward direction with respect to a top of the head. The adjustable crown support section traverses the top of the head in a crisscross fashion and is connected to the headband section via the connectors. The upper support section is disposed at a portion of the headband section corresponding to the face. The upper support section supports the interface device at a first location.