Calvin Klein Calvin Klein Performance - Calvin Klein Performance's navy sports bra is crafted with moulded padded cups and a supportive under-bust band, making it ideal for high-intensity workouts. It's made from moisture-wicking technical jersey that has vivid yellow panels, shaped with a scoop neck and racer-back, then hallmarked with reflective logos. Team it with the coordinating leggings and lightweight trainers for a mid-week class.