This weekend is the (un)official start of British festival season. What with festivals including Field Day kicking off in London and Parklife happening in Manchester, it's time to let loose and get into the bohemian spirit. And what should you wear to express your inner flower child? The prairie dress is seriously your most stylish option, already racking up Alexa Chung, model-blogger Hanneli and Brit actress Jenna Coleman as fans. It tends to be gauzy white cotton, off the shoulder and nipped in at the waist – embroidery and tassels are optional. Wear it with a cross-body bag and boots this weekend and then swap in bangles and gladiator sandals for your summer hols. Easy as.