A high impact sports bra with Berlei's Support Factor 4 rating making it perfect for extreme impact sports and reduces breast bounce by over 60%. Berlei Ultimate Performance Crop is designed to hold a heart rate monitor and MP3 player while the swivel front shoulder strap clasp moves and flexes with the body. Seam free and perforated contour cups provide breathability and reduce chafing with racer back clip and hook adjustment designed to allow for multiple shoulder strap positions. Moisture wicking padded shoulder straps, underbust and body band minimises irritation in high rub areas. Ideal for extreme impact activities such as long distance running, kick boxing and athletics.