Sienna Miller, always cool, touched down at Wimbledon in the most perfect outfit for battling the British summertime. We don't know whether she'd checked out our five-piece formula for cracking the dress code in this unpredictable weather (one can dream), but she's certainly got the idea down to a fine art—from the whimsical-but-covered-up dress down to her patent (and therefore rain-resistant) brogues.
Scroll down to see how Miller's nailed the Blighty fashion tightrope, plus you can shop from her look…
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Tell us what you like about Sienna's look in the comments box below and shop from more summer dresses in our edit of the best.