navy blue long formal dress KissProm Sweetheart Appliques A-line Ruffle Prom Dress, Navy Blue / 2 An ideal choice for both evening dresses and formal dresses Off Shoulder Simple Satin Navy

Jess Edwards is Cosmopolitan UKs Deputy Editor, working to deliver the very best experiences across the brand's platforms (print, social, video, digital), products and events, including a focus on our membership offering, Club Cosmo

Consider dress length

Mesh flats along with some sleek accessories keep it relaxed yet polished

Her tour looks may be swoon-worthy, but they arent exactly wearable IRL (unless youre lucky enough to have somewhere to go that requires a bedazzled corset bodysuit) or available to buy (theyre custom-made by Victorias Secret, Patou, and Ludovic de Saint Sernin)

DThigh Measure around the fullest part of thigh, keeping the measuring tape horizontal