With padded straps & good ventilation, it’s built for long runs, race days, and everything in between. Oh, and there’s a pocket for your phone or fuel! We love it for: medium support for working out or relaxing PacerKnit fabric: 76% Recycled Polyester, 24% Spandex Moderate support Designed for A/B-B/C cups with removable cookies Liner: 89% polyester and 11% spandex Quick-drying & cool to the touch Rear laser perf panel pocket for flasks, fuel, and phones Narrow rear panel reduces heat build-up Padded straps for comfort Encased elastic bottom band Machine wash cold, tumble dry low, don't bleach, mmkay? Designed in California, made abroad