The Swift FX for Her is the women's build of ResMed's classic nasal pillow mask, sized for a smaller, more feminine fit. The Fit Pack ships Extra Small, Small, and Medium pillows with a shorter, pink headgear, so it sits comfortably on smaller faces without a lot of extra strap. It's a good fit if you want a minimal nasal pillow mask that stays out of your way for reading, glasses, or side sleeping.
This mask is part of ResMed's earlier Swift line, and while it's still available, it's sold while supplies last. If you want ResMed's current-generation women's option, the AirFit P10 for Her is the newer nasal pillow mask ResMed positions as lighter and quieter.
Not a fan of straps behind your head? The Swift FX Bella for Her uses the same dual-wall pillows with an over-the-ear loop headgear instead. Either way, this mask has no magnets anywhere in the frame or straps, so it's a safe choice if you use a pacemaker, insulin pump, or other implanted device. A prescription is required.