Petite dress by Fashion Union Petite, Suitable for work and play, Floral design, Everythings coming up roses, Shirt collar, Button placket, Blouson sleeves, Regular fit - true to size. Fashion Union helps you overhaul your party-girl wardrobe with its standout collection. Head out-out in its punch-packing dresses, cheeky twosies and playsuits that have all been scaled down to perfect petite proportions.