NWOT Summer Crop Top, Sexy Lace-Up Design, Black Measurements: Collar to bottom of front edge 10in Armpit to armpit 14.5in Not sure of exact material blend but feels like polyester. Has a moderate amount of stretch to it and is form-fitting; super flattering for the the right fit! Positioning of lace-up part in the back is fixed. You pull the top on as a stretchy tube, no confusing loose ties. #croptop #laceup #sexy #flattering