Library Book Case Ladies Tank Top 90% Polyester, 10% Spandex Machine washable - 30 degrees Celcius is recommended Available in sizes XS - 3XL Soft, stretchy, lightweight and quick drying fabric Great for the gym, working out, and running, as well as casual wear Print-on-demand - each top is printed & sewn especially for you Beautiful all-over sublimation printing to ensure gorgeous lasting colors