Sleeveless top with Lace Inserts
Stretch lace will work too. They have that fabric in many different colors HERE.
Flirty Skirt with Shorts
By the way, Emily suggests using double brushed poly spandex for the leggings. I recently ordered some from califabrics.com. My order came a few days ago and the piece I selected looks like a winner! This fabric is soft, stretchy, and comes in some pretty prints as well as solids. No affiliation, but you may want to check out what they have HERE.