Debenhams has announced Savannah Miller and Giles Deacon as the latest names to join the ranks of their Designer offering with the launch of two new womenswear collections for AW15. 

It's big news for the popular department store, building on the success of several previous designer collaborations.

Group Trading Director, Suzanne Harlow says: "The appointment of Savannah and Giles is really exciting as a large proportion of our customers choose to shop with us because of our Designer offering. Nine by Savannah Miller is a collection that is versatile and can be worn everyday in a cool and contemporary way.

"Adding Giles to our stable of designers reinforces Debenhams’ credentials of working with cutting edge design talent and offers our customer a vast amount of choice from classic through to modern styles."

Giles Deacon attends the Elle Style Awards 2015 

Fans will also spot a few familiar faces in the campaign imagery, with supermodel Carmen Kass acting as as muse for the Nine by Savannah Miller collection, while Daisy Lowe will be the face of the Giles Deacon 26 piece range.

Miller has worked with Alexander McQueen and Matthew Williamson, and spent six years as Co-Creative Director at Twenty8Twelve alongside her sister, Sienna Miller. She also designed her own line for Scandinavian fashion site, Nelly.com.

Savannah Miller attends the Royal Academy of Arts Summer Exhibition preview party 

Savannah said: "I am delighted to become a part of the Designers at Debenhams offering with the launch of my new collection, Nine.  The range is inspired by the eclectic and bohemian, chic way that cool girls dress and comprises of relaxed, casual separates.  Naturally there is a particular emphasis on amazing knitwear which can be teamed with perfect jeans to embellished sequin skirts."

Giles Deacon launched his first collection for GILES in 2004 and was named Best New Designer at the British Fashion Awards the same year. In 2006 Giles was named British fashion Designer of the Year, while celebrities like Sarah Jessica Parker and Cate Blanchett have been spotted in his designs.

Giles said: "The woman who wears my clothes has a playful style and loves to dress up.  She is fearless yet light hearted and when she puts on a piece of clothing I want her to feel amazing as well as make heads turn. I feel like we have made a collection that is true to my signature style, and I’m excited that we have been able to deliver a luxury look and feel at high street prices."

Both ranges will be available in selected stores and online at the end of August.