This is the ORIGINAL NOGGIN TOPPER. All NOGGIN TOPPERS are made double thickness from 100% acrylic, making them machine washable and dryable. They are a one size fits most size. My children ages 4, 10 and 15 wear them as well as many adults. Please choose up to 4 colors to suit your taste. As you can see, the possibilities are endless! Additional colors may be added for an additional charge per color.