Streamlined, tech-inspired aesthetics. This sporty black Muscleback features an abstract lined panel graphic in fluro red and purple. The muscleback style offers flexibility during your fitness training and includes a medium neck and back opening, so you feel confident and secure as you move through your workout. Made from our durable Endurance+ fabric, it s quick-drying and chlorine-resistant. Plus, the Polyester yarn in this fabric is made from 100% post-consumer waste, such as recycled plastic bottles. Machine washable. 53% Recycled polyester, 47% PBT.