Chemo Beanies Denise Currant Wavy Knit Ruffle is a unique elastic design that stretches for a comfortable and easy fit. No tying is required, it slips on and off with ease. Cold machine wash is recommended and lay flat to dry. It is made of 95 percent polyester and 5 percent spandex material. Designed by cancer survivors to provide full coverage of hair loss as an alternative to other hats, turbans and wigs.