Sienna and Savannah Miller step down from Twenty8Twelve

Sienna and Savannah Miller step down from their roles as co-creative directors from fashion label Twenty8Twelve

Sienna Miller - The Cut

Yes, Sienna Miller really does look this good in a grey jumper. Le sigh. - OK! Magazine

Savannah Miller interview: 'When you get to your 40s, you've found your groove

Fashion designer Savannah Miller's understated collection

Sienna Savannah Miller Leaving Twenty8Twelve Fashion Label Celebrity News Glamour UK

Sienna Miller and sister Savannah step down from Twenty8Twelve fashion label

Celebrity sisters Sienna and Savannah Miller pose for their portrait at the launch of their fashion label's latest collection: Twenty8Twelve. London F Stock Photo - Alamy

Designer Savannah Miller sounds off on money, teamwork and her latest beauty venture

Sienna and Savannah Miller leave Twenty8Twelve, British Vogue

Miller sisters use celebrity connection to push label, London fashion week

Savannah Miller interview: 'When you get to your 40s, you've found your groove

Sienna Miller Just Jared: Celebrity Gossip and Breaking Entertainment News, Page 68

Sienna Miller: Twenty8Twelve Selfridges Launch with Savannah! Perfect hair color / pale skin combo