Athleisure goes after-dark — a sheer black lace tracksuit with sporty stripes and a dressed-up attitude. Fabric, fit & feel: Made from sheer corded floral lace in black, the zip-front track jacket is fastened with white bow-frog toggle closures and trimmed with a crisp white side stripe, over matching wide-leg lace track pants with the same contrast stripe. Style it with: Pairs well with white sneakers and a bralette for daytime edge, or heels and a bodysuit underneath to take the set out at night.