I was skeptical whether this bra would be supportive but tried it out today for a workout that had box jumps, over bar burpees and some other torturous things and it did well. I didn’t notice I was wearing it, it was that comfortable. The design of the straps across the back help provide medium support. For running long distances, this would not be my go to, but it’s good for CrossFit, yoga and other workouts. I ordered an XS and it was just right.