This yoga tank top is made with Lycra fibers for sweat-wicking and quick-drying performance. I purchased it from the Lululemon online shop, but I haven't had the opportunity to wear it, so I'm offering it for sale. - Model Name: Course of Action Tank - Size: 6 - Material: 4-way stretch, sweat-wicking fabric containing Lycra fibers - Design: Features a tied-back design for a customizable fit Thank you for looking.