KNWLS Nike · Flyknit Corset Top. Form-fitting knit bustier with corset hem and lacing at the back. Fastens with adjustable hook and eye closures at the shoulders and zip at the back. Finished with Nike Swoosh logo on the back of the right shoulder. Constructed using the yarn used for Nike's Flyknit racer shoes, marking the first time the technology has been used so extensively in a ready-to-wear context.