From spin classes to studio stretches and everything in between, this LIVI wireless sports bra is designed to handle it all. Its innovative engineered knit is the perfect combination of targeted support and moves-with-you stretch (plus, a super-smooth seamless finish!) for a no-fuss essential you can count on. Hook-and-eye closure at back. Zoned compression adds support, shape and minimizes bounce for medium-impact activities (i.e., spinning and circuit training). FABRIC: Wicking. Supportive stretch and fade-resistant, moisture-wicking and quick-drying fabric. 18/20 = 40D, 42D, 40DD, 40DDD, 42B-C Material: 85% Nylon/ 8% Pokyester/ 7% Spandex