Features Strappy halterneck Backless design High stretch & durable fabric Incredibly soft feel Removable cups Flattering front motion scrunch Twill knit structure underbust 90% Nylon | 10% Elastane Fit – Firm at True to Size; Size up for a more relaxed fit Make your IMPACT in this Strappy Sports Bra! This super-soft halterneck bra is designed with an open back and a twill knit structure underbust for ultimate support. With a flattering front motion scrunch, you can pair this bra with the rest of the IMPACT line for a second skin feel and the ultimate STRONG girl look.