The Quattro FX's tension-reducing headgear design features a contoured crown strap that sits snug at the top of the head, avoiding sensitive areas around the back of the neck.
SIZING: All Quattro FX mask packages come standard with MediumStandard Headgear -- in Blue on the QuattroFX and in Pink on the Quattro FX For Her. Small and Large headgear can be purchased separately for a more customized fit.
COLOR: Blue Quattro FX Headgear is available in three sizes -- Small, MediumStandard and Large. Pink Quattro FX Headgear has gray fabric on the inside and pink on the outside and is available in two sizes -- Small and MediumStandard.