Tracksmith X J.Crew race short Size medium New with tags 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. These swim-friendly bottoms are made from a quick-drying, four-way stretch and feature a zippered back pocket. 71% micronylon/29% elastane body and lining. Machine wash. Item BQ909.