The Nike Yoga Layer Tank adds sweat-wicking technology to soft, breathable fabric for lasting comfort. The longer back hem helps keep you covered while you bend and stretch Dri-FIT technology helps you stay dry and comfortable. Breathable jersey fabric feels incredibly soft and lightweight with a little bit of stretch. Racerback and side slits let you move freely through your routine.A longer back hem helps keep you covered while you bend and stretch. 65% POLYESTER 35% RAYON.