Product features:

U-shaped design for a perfect and snug fit of the face in any position.
Zero pressure on eyes, Lightweight breathable. You could hardly feel that you are wearing anything when you fall asleep.
Soft silk elastic strap. Fit most head sizes. Won't get tangled in your hair.
High quality filled mulberry silk makes it into our eye masks. 
Super soft and comfortable for your eyes. Features thousand of layered super breathable silk floss, which offers you ultra soft and fresh touch on your eyes. Tight, clean and smooth seams ensure minimum rubbing in every sleeping position without any pressure.

Cleaning method:

Hand wash temperature below 40°C
Do not rub violence
Flat lay to dry
Do not machine wash

Notes:

Dark colours may be possibly susceptible to fade. Please wash it several times with cool or cold water. Hot water tends to open up the fibres of the fabric which encourages the dye to escape and run. Please dry in shade, do not use a dryer