Wear this tank two ways: layer it on long and loose or tie up the back to secure in place during yoga class. Made with soft, stretchy Pima Cotton fabric that's naturally breathable. pima cotton Pima Cotton fabric is breathable and soft against your skin features Designed for: Yoga, to + from Lycra®: Added Lycra® fibre for stretch and shape retention Neck coverage : High neck design adds coverage Breathability: Deep armholes and an open back for airflow