Introducing Tracksmith X J.Crew... - a new collab to help you hit the ground running. We partnered with the Boston-based brand on a capsule of high-performance gear in exclusive colors that can be mixed and matched with our own activewear - for training, racing or taking a rest day. This swim-friendly racerback style is made from a quick-drying, four-way stretch fabric and offers medium-impact support. 71% micronylon/29% elastane body and lining. Machine wash. Item BQ908.