Our patented Racerback design uses a double-layered compression panel made with a nylon spandex blend and cotton for extra flattening effect. Open, Y-shaped back allows for greater mobility and range of motion, making it easier to pull on and off. Slimmer straps, which are reinforced with elastic, secure a discreet, low-profile look. Model is wearing a size 5XL and has the measurements:Shoulders - 20 / 21.5 inchesChest - 51.5 inches Please note:  All of the binders in this collection are being discontinued to make room for new stock. These products are FINAL SALE and will not be eligible for exchange, return, or refund. *Provided for reference. Each body is unique and even people with identical measurements may best fit different sizes. Email our care team at support@gc2b.info for advice or check out our sizing page for an instructional video and more information.