Betty Designs sexy back one-piece swimsuit is a functional trainingswimsuit with thin racerback straps. Made of a combination ofpolyester + lycra this suit isgreat for pool + open waterswimming. Lined with polyester for modesty.·81% polyester 19% Lycra Xtra Life·Lined with 100% polyester·Ultra thin strap racerback design·Kelsey is 5’11”, 135 lbs, bra size 36A and is wearing a size 32FIT TIP:Swimsuits run a little on the smaller side.Please refer to oursize chart.Need a size consultation? Email customer service atsupport@bettydesigns.zendesk.comor click the support tab and send us your height, weight, bra + denim sizesowecan assist.