medium support and adjustability highlight this pure run bra. our new COOLmatic | PLUS KLOSfit™ fabric brings a cool feel and just the right amount of supportive compression. hook-and-eye back closure and straps adjust for a more personalized fit. laser perforations on the front and back as well as our COOLmatic | PLUS VITALmesh™ lining work to keep things dry from start to finish. "wash before wear" we recommend a cold wash before your first run. this clears any excess surface pigment from the technical dyeing process.