Everyone sleeps better when it's dark! The top of this mask is brown, black and tan camo cotton, the back side is soft fleece, inside is a layer to block light. The soft and comfy elastic band shiny on one side. Pattern placement will vary. Choose if you would like pink on the back or purple. Large adult size: Mask is about 8 inches by 3inches from center. Elastic measures 13.5 inches. Fits a head about 22.5 to 24 inches. Average adult/teen size: About 8in (20cm) by 3in (7.5cm). Elastic measures about 12.5 in (32cm). Fits a head about 21 to 23 inches. Older child size: About 7.5 in by 2.5 in. Elastic measures about 12 in. Fits a head about 20-21.5 inches. Toddler/small child size: About 7 in by 2 in from center. Elastic is about 11.5 inches. Fits a head about 19-20 inches.