Linen is set to be the fabric of choice for the summer months, with its comfortable and airy qualities making those hot days a bit more manageable. Marks and Spencer shoppers have found the perfect dress that's 'lightweight', 'flattering' and 'suits all ages' for less than £40. Retailing at £39.50, the crisp white, midi-length dress features a breezy sleeveless design, side-split and a round neckline.