The classic myprotein womens core racer back crop vest features dropped armholes and a curved hem constructed using a fine polyester blend the core racer back crop vest is soft and delicate on the skin draping gracefully for a flattering loose fit soft touch polyester blend model is 510 wearing size s cropped loose fit true to size myprotein branding works well with logo leggings fabric care composition 70 polyester 30 viscose