Sisters Savannah and Sienna Miller lend style to high street brands, Fashion

While Sienna brings ‘boho chic’ to resurgent M&S, designer sister launches affordable tailoring label with John Lewis

Sienna Miller's sister Savannah launches eponymous clothing line

Savannah miller sister sienna miller hi-res stock photography and images - Alamy

Sisters Savannah and Sienna Miller lend style to high street brands, Fashion

Sienna and savannah miller hi-res stock photography and images - Alamy

The Non-Blonde: Sisters- Sienna and Savannah Miller

Savannah miller sister sienna miller hi-res stock photography and images - Alamy

Savannah miller sister sienna miller hi-res stock photography and images - Alamy

Sienna and savannah miller hi-res stock photography and images - Alamy

Sienna Miller Style: See the Actress's Best-Ever Looks

Sienna and savannah miller hi-res stock photography and images - Alamy

Unraveling 15 Years of Goop's Most Bizarre Advice

Designer Savannah Miller on fashion secrets

She Is Inherently Golden”: Savannah Miller On Her Sister Sienna Miller's Style

New Savannah Miller Wedding Dresses

Pictured: Sienna and Savannah Miller, Go Glam or Go Home: Over 100 of the Best Pictures From Last Year's Met Gala

Savannah Miller wren

Celebrity sisters Sienna and Savannah Miller pose for their