When you run your bust moves in a figure 8 formation, which asks a lot of your sports bra. The Shock Absorber Run Sports Bra reduces the movement of your bust by 78% for friction free comfort during your run so you can focus on your performance. This bra has been developed to give you ultimate support during running so you can focus on your performance. Adjustable, broad, padded shoulder straps with anti glide technology and a seamless lining.