- All the stitch seams are sewn sealed as opposed to cheaply glued
- Easy-to-adjust without being too tight or bulky, snug fit enough to stay on face contour with small women and large men
- Unique shaped eye cups & nose cutout - Never press against eyeballs, eyelashes or nose and yet create a perfect seal that blocks all light out no matter if you're a back, stomach or sensitive side-sleeper
- Machine washable inside a laundry bag on delicate