Reformation Gwen Ecomove Bra in Serenade SMove a muscle. The Gwen activewear bra is tight fitting throughout and has a double-layered bodice for added comfort. It has non-adjustable wide straps so it's extra supportive. EcoMove is a sleek performance fabric with a slight sheen for mid to high-impact activities.Worn once, at most. Like new! Size smallMatching bike shorts also available in my closet!