light blue dresses long Sky Simple Satin Pearl Prom Dress with Pocket PG975 US2 / Sky Blue Line Style Fabric Light Blue Tulle A-line V-neck

"Derby shoes are also a bit more casual than the Oxford and a good go-to for business casual looks," notes Kenger

With my Dalcuore brown tweed suit above, the shoes are clearly darker than the suit, creating the distinction between the two thats normally the aim with smarter dressing

With it being a looser fit its flattering whether or not you are having those bloated days

Bottom : Black trousers with loafers or dress shoes to maintain balance in the look

But at the same time, a very round, easy loafer will look more casual than a tassel because its less fancy probably

It may also be prudent to not wear the same color as the bridesmaids to prevent confusion