The OG Muscle Tank • 65% polyester, 35% viscose • Athletic Heather is 52% polyester, 48% viscose • Black Heather is 80% rayon, 20% polyester • Relaxed fit • Low cut armholes • Curved bottom hem This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!