Evening maternity dress by Isabella Oliver, Made from a premium stretch-jersey fabric, V-shaped neckline, Three-quarter-length sleeves, Empire line design, Regular fit. This seasons best dressed bumps come courtesy of Isabella Oliver. Launched in 2003, the British brand is the newest addition to the ASOS family, specialising in chic and comfortable maternity clothing for every occasion. Flatter your bump and new curves in an array of jersey basics, stretchy separates, colour-pop skinnies and pregnancy-friendly, day-to-evening dresses.