This COS Gathered Bustier Midi Dress in Light Blue is a stylish and versatile option for a UK size 16 woman. The sleeveless design, zip closure, and fit & flare style make it perfect for casual occasions in the summer or spring. The dress features a flattering midi length and a beautiful gathered bustier detail, adding a touch of elegance to the overall look. Made by the popular brand COS, it is a timeless piece that can be worn for years to come.