Woof Wear Convertible Hat Cover Ultra Violet. Whether its to match a set, or simply add a pop of colour, the Woof Wear Hat Cover is the perfect addition to any rider\\\'s wardrobe. This hat cover features a removable button allows hat cover to be used with or without pom pom. The fresh colour and navy contrast is perfect for everyday or colourful events. You\\\'ll be hard to miss wearing one of these! The flexible lycra material is designed for a sleek, cosy fit, complete with a rigid peak for bonus style points.