100% MULBERRY SILK: Both sides are made of 19 mm premium quality silk, the fabric silk is highly absorbent and so effectively preserves the moisture in your skin, helping to minimize wrinkles around the eyes; moisture wicking properties also keep your eyes dry and comfortable in any environment; naturally breathable and soothing on your eyes without any skin irritation.VARIOUS APPLICATION – Ideal for insomnia, migraine headaches and dry-eye sufferers; Get the benefits of total blackout.