Berlei Support Factor 3 - High Impact. Reduces breast bounce by up to 50%. Your perfect bra for high impact sports such as tennis, netball or basketball. Berlei is the only sports bra brand tested, approved and endorsed by the Australian Institute of Sport. Mesh in the cup and back provides breathable panels for a cooler workout. Lined cups and shoulder straps provide superior comfort and reduced bounce. Mesh panels for increased breathability. Crossback straps provide additional versatility and support. Adjustable hook and eye.