It has been a struggle to find an actually supportive sport bra, the search has ended this is the one. It cups the breast perfectly and keeps them in place,but doesn't restrict them by having the top layer be more of the breathable fabric. The fabric feels great to the skin is breathable along with taking sweat like a champ. It has wonderful cotton-like thick straps that keeps everything in place along with not digging into my shoulders. It's clasps feel strong and doesn't feel like they will unhook whilst I'm doing jumping jacks. Overall, when running and jumping it keeps your breast mostly in place although they do bounce, but at least less and when they bounce it doesn't hurt. I do feel like it could be even more supportive,but this is good enough for me. I can now run in a finally supportive bra.