This exquisite hand-beaded jacket is one of Sienna's favourites, only available online and produced in limited numbers. The floral Art Deco-inspired design has a relaxed fit with hook-and-eye fastening to keep things streamlined, allowing the beading to take centre stage. Pair with the matching trousers for a showstopping party look. M&S X SIENNA MILLER Womens M&S X SIENNA MILLER Relaxed Beaded Jacket