Masks: For all Full Face masks:
Masks that cover nose and mouth and reach to middle of lower lip, except Chin Full Face Masks.
Regular full face masks reach to the middle of lower lip but Chin Full Face masks reach below the chin, (reach below lower jaw / fit over the chin
Gel Liner for Chin Full Face Masks are under "Chin Full Face Gel Liner"
Sizes: Small and Large
Small Gel Liner covers Small and Medium Full Face Masks.
Large Gel Liner covers Large and X Large Full Face Masks.