Product Description Top things off. This wide-strap tank has been updated in Performance Rib: our softest fabric, with a gorgeous ribbed texture. It features a stylish twist detail at back and a comfortable, convenient built-in bra perfect for studio workouts. Features Moisture-Wicking UPF Protection 4-Way Stretch Removable Bra Cups Fabric Performance Rib Fabric that moves with you. Performance Rib is a soft lightweight fabric with a gorgeous, ribbed texture that provides a compressive fit. Move, stretch, and bend with total range of motion on or off the mat. 77% Recycled Polyester/23% Spandex