Beyond Yoga Balanced Muscle Tank in White. - size S (also in L, M) Beyond Yoga Balanced Muscle Tank in White. - size S (also in L, M) 94% poly 6% spandex. Made in USA. BEYR-WS129. LWSD4352. Beyond Yoga is ideal for modern living, from carpool to class, and lounging to lunch. Built on the belief that confidence is not a size but a state of mind, Beyond Yoga meticulously designs and tests each piece to ensure optimal comfort and functionality. Beyond Yoga is designed to fit a variety of body types, shapes and sizes without compromising comfort, support and style.