What makes this product different: A unique short-sleeved suit with a cut designed for speed and maximum coverage. Extremely hydrophobic, it uses Yamamoto's latest SCS material. Elegant Kona-inspired print design. Bonded seams and high-tech fabric with nano coating. Used and loved by the pros. The Zone3 Kona Swimskin features short sleeves and a tropical print design to nod to the Kona Ironman World Championships. The suit is designed to provide optimal core support and reduce drag during non-swimming swims. What is SCS swim fabric? This technology, most commonly found on high-end wetsuit models, has only recently become available for swimsuits, which is required for FINA and WTC approval. High density knitted structure with a 100% water repellent SCS coating. SCS (Super Composite Skin) technology allows the surface of the suit to have a hydrophilic property, which is necessary to obtain FINA approval. A surface friction resistance of 0.025cdf compared to the industry standard of 1.8cdf, making it the most rapide bathing skin in the world.