Basic Formulas on Physics Sleep Eye Mask, Sleeping Mask & Blindfold with Elastic Headband Soft Comfort Eyeshade Sleep Cover for Travel Yoga Nap

Material: polyester fiber + sponge fabric. Ultra-comfortable body sleep design, light and soft, no pressure on the eyes, allowing you to enjoy a comfortable night's sleep. Adjustable eye mask: elastic webbing, can be adjusted according to different needs. Filled with cotton, it is softer and fits the contours of the eyes, with high resilience and breathability. Comfortable and cool eye mask: The curved design makes the eye mask fit more comfortably and effectively blocks light. The glossy surface is fixed black with cool nylon fabric, which is a better choice for cool and breathable summer. Sleeping Eye Mask: Great for soothing tired or puffy eyes, relieving headaches, or just relaxing. Great for travel, meditation, yoga, sleep or rest during work, etc. Cleaning: This blackout mask needs to be hand washed, do not bleach, and air dry.