Betty Designs sexy back one-piece swimsuit is a performance training swimsuit with thin racerback straps. Made of a combination of polyester + lycra this suit is great for pool + open water swimming. Lined with polyester for modesty. FEATURES 81% polyester 19% Lycra Xtra Life Lined with 100% polyester Ultra thin strap racerback design McKenna is 5'9", bra 34B, 26" waist, 36" hip and is wearing a size 32 **FIT TIP: Swimsuits run a little on the smaller side. Please refer to our size chart. Need a size consultation? Email customer service at brandexperience@bettydesigns.com and send us your height, weight, bra + denim size so we can assist.