Our Sunback Tank is engineered from our exclusive, longest lasting fabric: 100% chlorine resistant fabric designed to lasts 20 times longer than conventional swimwear fabrics. Constructed with ultra-open back and ultra-thin straps for enhanced range of motion. Extra comfortable and yet provides the support you need with the center back strap giving freedom of motion. It provides a daring fit with minimal coverage specifically designed for outdoor practice and race day. Designed to handle ...