RERYOU Sleep Caps: Our sleep caps are made of satin material which is soft, glossy, smooth and like silk, breathable, lightweight and good elasticity to fit most kids, suitable for all seasons and occasions. It's super durable, lasting for at least a year. Recommended To Kids 2 Years and UP. Help Hair Retention, Growth, and Health - Highest Grade of Satin for High Quality - Adjustable for Comfort - Reversible for Versatility - Double Layered for Durability - Satin Lined for Comfort - And it's hypoallergenic, so it's even gentle enough for newborns and babies with sensitive skin. Specifications Material: Satin Color: Pink, Purple, Red Diameter: 10.64 inches Package Includes 3 x Sleep caps