There's a fine line between appropriate and frumpy, so it's not surprising that the British summer "season" forms the backdrop for unspeakable crimes against fashion. Asymmetric hemlines, exposed bingos and streaky calves could have us believe that when it comes to summer-event dressing, we Brits are locked in a bad-taste-party time warp, circa 1995. To help negotiate the hazards, take a lesson from Chloë Sevigny. While watching Prince Harry play polo in NYC, she managed to look both refined and edgy in a fresh shorts suit (ideal for intermittent cloud cover), sexy strappy wedges and an adorable boater perched on just the right side of kitsch. To re-create her look, balance demure with sexy - flash your legs but conceal your arms - and keep the colours simple. To avoid the Pixie Geldof try-hard tag, steer clear of clunky accessories and opt for quirky touches such as vintage-style headgear. Just because it's a traditional event doesn't mean you can't have fun, so bin the fascinators and step out of the time warp.