A patient interface system for treatment of respiratory disorders

A patient interface system to treat a respiratory disorder of a patient, the patient interface comprising: a patient interface; a positioning and stabilising structure including a back portion and a pair of upper straps extending from the back portion; and a patient interface frame for retaining the patient interface against the patient's face at an entrance to the patient's airways, the patient interface frame including a pair of rigidiser arms including a pair of upper attachment points each located on one of the pair of rigidiser arms for releasable attachment to a respective upper strap, and the patient interface frame further comprises a pair of lower attachment points each for releasable attachment to a respective lower strap, said lower attachment points joined to the patient interface frame separately from the rigidiser arms, wherein when the patient interface system is donned by the patient the rigidiser arms are shaped and dimensioned to extend from the patient interface frame along the patient's cheeks and between the patient's eyes and ears such that each upper strap is connectable to a respective upper attachment point above the ears of the patient, each upper strap being substantially parallel to the patient's Frankfort horizontal when donned by the patient.