Breathable so your eyes wont get stuffy and wont interfere with your sleep.
Breathability means better air permeability.
If you wear the eye mask for a long time, it is easy to get stuffy, especially in summer, etc.
It is often sweaty, which will cause you to disturb your sleep.
In that situation, we suggest you choose a breathable one.
The heat of the eye mask will pass through, so you can rest assured that even if you wear it for a long time.