Features & details The shape of the contour on the inside of the sleep mask has been designed to sit away from your eyelids and allow additional space for your eyelashes to sit while you get your beauty sleep. Silk fibers are less absorbent than other fibers, so they can help keep expensive face and hair products where they belong. So what could be better than sleeping on a Slipsilk pillowcase? Wearing a luxurious Slipsilk sleep mask at the same time. Anti aging - In laboratory testing, Slipsilk was shown to absorb significantly less face cream than cotton*, helping to keep your skin's moisture and valuable face products where they belong, on your face. *Compared to widely-available cotton pillowcases with a 220-360 thread count. Anti sleep crease - Slipsilk has been shown to reduce friction, allowing skin to glide along the pillow, which can reduce pressure on creased skin, including the delicate areas around your eyes. The Slipsilk difference - Slip pure silk products are made using Slipsilk. Specially-commissioned and made to our exacting standards, Slipsilk has been developed and refined for over ten years to provide the ultimate combination of shine, thickness, softness, and durability.