Elastic Stretchable: The beanie size ranges from about 21 inches to 23.5 inches, it comfortably stretch the heads of most men and women without slipping on the bald head. Comfortable Breathable: Made of cotton polyester. Double layer design keeps you warm but not hot, suitable for all season. The soft, lightweight and sweat absorption beanie can be worn all day long without causing discomfort to your tender head.Practicality Versatility: Simple and stylish style easy match for casual dress up. Daily used for indoor and outdoor. Can be used as night sleep cap and cancer chemo hat as well.