Pictured is a two piece set from K Swiss. The top is the Open Racerback Tank, $48 in white with touches of mesh in brilliant blue and blazing yellow. It has a built in bra, is all performance and UV protective (40+); the skort is the Mesh Pleat Skirt, $50; and her Performance visor, $20.
I love K-Swiss skirts and this one offers a slimming twist on the classic full pleated that can make you look a bit hippy (not good unless you are a stick). The brilliant blue wrap skort (pictured here) is a good alternative.
The outfit gives the illusion of a dress but is versatile. The skirt can go with a myriad of tops.The look does come as a Halter Dress but with a blue pleated hem. I prefer the two pieces -- less maiden-like. If you can't find the skirt take a look at the KSwiss Basic Knit Short in white. These are short but really cute (comfy low cut with no "mom" waist), $45.
Good luck in the finals Vera!