The ResMed AirFit F30 headgear is designed to give you that extra softness and stability that is so important for a good fit. The magnetic clips that come with the headgear help to guide the headgear to fit the frame with ease. The AirFit F30 headgear is designed to reach above the ears and over the crown of the head before connecting at the base of the head. With 4 headgear connection points, the 2 upper straps connect at the top of the mask frame, while the lower 2 straps connect to magnets on the base of the mask frame. The AirFit F30 replacement headgear strap is available in size standard (medium).