Made of 100% natural mulberry silk, olesilk silk sleep mask has the perfect amount of thickness, softness and durability, with elastic back. The size and color of this blindfold sleep aid allows it completely block out any light for yoga, traveling, napping and on airplanes, best eye cover for insomnia, migraine headaches and dry-eye sufferers. Also, the fashion design can match every style of your wardrobe, fits for your Halloween costume as well. 100% Mulberry silk is naturally hypoallergenic, breathable fabric. Helps skin keeps retain its natural moisture, preventing fine lines and wrinkles.