This additional layer which is fabricated with bamboo charcoal, wicks away moisture and keeps your child comfortable and cool. The seat liner can be easily removed and thrown in the washing machine. breathable bamboo charcoal fabric that regulates the temperature and wicks away moisture additional padding for your child’s comfort and protection from accidental spills and crumbs choice of colors to complement your stroller machine washable easy attachment with Velcro© slit openings to all Bugaboo strollers seats for a secure ride