The Nantucket Rainbow Fleet Belt from Preston Leather. At a yacht club barbecue or watching a weekend race, our colorful and durable belts will keep you in style. This belt faithfully depicts the famous Nantucket Rainbow fleet. Historically, the rainbow fleet was formed on Nantucket by using different colored sails on Beetle Cats so that parents could identify their children on the water. Today the Rainbow Fleet is an iconic image on Nantucket. Our belts have leather tabs, solid brass buckles and are proudly made in the USA. Always order one size over your pant size.