This one piece has a cross back and cute cut out in the front. Fully lined with built in undies. I sized up to a medium. Fits me in the chest but is a bit loose on the behind. I paired it with a denim jacket (they I’ve had for years), sneakers, and a crossbody bag. Super comfy to wear during a day at Disney Springs. Casual spring outfit, athleisure, easy Disney outfit, womens runsie, women’s romper, gym outfit LTKFitness LTKActive LTKStyleTip