I needed something to cover my head while allowing my hair mask to soak in. I debated on disposable or reusable shower caps, but decided eco-friendly was the route I wanted to go. These are silky on the outside, with a plastic liner on the inside. Perfect! They fit nicely. A tad on the large size, so not sure they would fit a child, but should fit most adults heads fine. They serve their purpose well, and I'm very pleased with this item.