Silk has been shown to reduce friction, which can reduce pressure on wrinkled skin; Helps protect the delicate areas around the eyes by preventing marks that can cause wrinkles; Silk naturally moisturizes the skin while you sleep, reducing the appearance of dark circles. ANTI-IRRITATION & HYPOALLERGENIC -- Odorless, colorfast, and non-toxic dyes; Lightweight and no heavy feeling on your eyeballs. Pure silk touches your face, making the sleep mask a best gift for women and men with sensitive eyes or skin conditions like eczema. 100% COVERAGE & TOTAL BLACKOUT -- A deeper nose groove is more comfortable for all facial contours, does not press against the nose. Extra inner layer for complete light-blocking properties. Whether you are traveling or using it at home, this eye mask will help you wake up refreshed and rejuvenated day and night. GOOD FOR SIDE SLEEPERS -- The plastic buckle (high tensile strength) sits at the back of your head and does not rub against your ears; Fully adjustable, extends from 40 cm to 70 cm in circumference, One-Size-Fits-All.