Cheltenham Festival officially kicks off next Tuesday, 10th March, and runs for four days until Friday, 13th March. While there is no formal dress code, unlike some other horse races, such as Ascot , the racecourse offers a few style suggestions to ensure you're as comfortable as can be throughout the week. Rather than extravagant gowns or fascinators, Cheltenham style favours a more relaxed approach, with country classics such as tweed suits, fedoras and tailored coats being the most common.