The Castelli Rosso Corsa Women's Bra is a cycling bra, not a sports bra. Not overly restrictive like a jogging bra, it's cool and offers just enough support for cycling.Castelli wanted to make a bra for the unique demands of cycling. Compared to other sports there's less impact but requires a higher level of moisture management. Castelli engineered in just the right amount of support - you'd certainly never go running in this bra but it's just right for cycling.WHAT IT ISIt's a cycling bra, not a sports bra. Not overly restrictive like a jogging bra, it's cool and offers just enough support for cycling.Castelli Rosso Corsa Women's Bra FeaturesSuperlight stretch fabric perfect for cyclingMesh inserts for extreme breathability keep you cool and dryBack hook-and-eye closure with 3-position regulation for easy on and offMolded cups with full coverageMedium support thanks to contoured seams and underbust elastic for enhanced fit and supportWeight:38g