Sienna Miller embarked on day two of her shopping tour of London yesterday, though this time she brought her sister Savannah and a pal along for the trip. She was flaunting her Style Icon status in a pair of Kate Bosworth-approved red Chloe ankle boots as her trio made their way between stores. Life isn't all about hitting boutiques for Sienna, as she just participated in a charity photo shoot to benefit UNICEF. It's a way to combine her love for both fashion and philanthropy, and she could use a little damage control after the whole Balthazar fiasco.

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