Sienna Miller: tortoiseshell sunglasses trend

As far as this year's sunglasses trends go, we haven't seen too much of the tortoiseshell trend on the streets. But one-time 'it' girl Sienna Miller is usually an early adopter of any trend.

Out and about in London with her beau, she wore a Grecian-inspired white dress, sandals, and a pair of tortoiseshell framed sunglasses. The back of the dress also sported an interesting take on the backless trend.