Justin Alexander
Available ready to wear in size 16. £1,545
Roxy sets spaghetti straps and a square neckline over a fitted, banded waist, then opens into a pleated skirt with a thigh-high front slit and side pockets. The slit and the pockets both do real work, so it moves easily and there's somewhere to put your hands. Try her if you want a dress you can actually dance and walk in, not just pose in.