100% satisfaction : over 1 million eye masks sold! If you don’t love our product, we offer a 30-day money back. SOFT + COMFORTABLE: Made with plush, lightweight, breathable rip-stop nylon that is soothing against your eyes and provides headache relief. Makes a great sleep aid on an airplane, at a hotel, or in your own bed. ONE SIZE FITS ALL - EVEN KIDS: This sleep mask uses elastic straps with a buckle to quickly adjust the fit for children or adults. No velcro so it won’t get stuck in your hair. TOTAL DARKNESS: This eye mask blocks all light, making it the perfect sleep aid. Soft ridge at the bottom provides extra protection against any leaking light making it great for naps or airplane travel. Hand Wash Only. Buckle closure.