Color:Black
We use the highest grade (6A) long fiber mulberry silk, with a thickness of 22 momme and enforce the strictest quality guidelines, including non toxic dyes.Learn more about this sleep mask and the Slip brand on our blog! Silk Sleep Mask.*Compared to widely-available cotton pillowcases with a 220-360 thread count.Slipsilku2122 is specially-commissioned and made to our exacting standards, developed and refined over ten years to provide the ultimate combination of shine, thickness, softness and durability.