The maid costume varies from café to café, but most are based upon the costume of French maids, often composed of a dress, a petticoat, a pinafore, a matching hair accessory (such as a frill or a bow), and stockings. Sometimes, employees often wear rabbit or cat ears with their outfits to add more appeal. Waitresses in maid cafés are often chosen on the basis of their appearance; most are young, attractive and innocent-looking women. For example, Royal Milk Café, a popular maid café, reports that the average age of its waitresses is 20.