TYR Lifeguard Swimsuits - Female Guard Diamond Back - Adult TYR Lifeguard Swimsuits - Female Guard Diamond Back TYR Lifeguard Swimsuits - Female Guard Diamond Back The Guard Diamondback Swimsuit showcases Nylon / LYCRA construction, for performance in and out of the water. Offering a long-lasting fit that resists chlorine and sun fade, the DALS1 Guard Diamondback provides the fit and freedom of movement that swimmers want and the performance that lifeguards demand. Engineered for the pool or the beach, the Female Diamondback Swimsuit is fully lined for added comfort and showcases a thin strap diamondback design for reduced coverage and increased support.