Alexa Chung might have had outfit changes in between her shows at London Fashion Week yesterday, but her looks all had one thing in common. At Simone Rocha, she dressed up in an ivory silk dress and silver ballet pumps with crisscross straps, while for Burberry, she changed into something a little more casual, wearing a glossy red trench coat with a T-shirt, cropped jeans and ankle boots. However, the one thing that she didn't change was her accessories, as she kept the faux pearl Simone Rocha hair slides that she had stacked up on the right side of her parting. We have spotted plenty of hair slides and barrettes at London Fashion Week this season, but pearl- and crystal-embellished clips stand out as the clear favourites. If your budget can't quite stretch to Alexa's Simone version, head to Accessorize, where you can find one for just £5. Keep scrolling to see Alexa Chung's new favourite accessory.