"The Simplus full face CPAP mask headgear comes with a stretchable and a non-stretchable panel to help support your mask and head during your sleep apnea therapy. Resting high on the back of your head, the headgear is breathable and permits maximum movement to each side, as well as up and down without compromising the fit of the headgear. Features: • Can be adjusted in 6 places for maximum fit and stability. • Moves side-to-side, up and down without mask dislodgement. • Breathable headgear self-locates high on the rear of the head allowing for maximum head movement."