FEATURES 100% chlorine resistant Quick dry Rubberised liner - comfort and support Drawstring waist Made from 50% recycled materials The Hyperboom Placement Swim Jammer from Speedo features a stylish spray-painted Speedo Boom logo. With a drawstring waist it offers a tailored fit while a rubberised liner and integral support provide enhanced comfort. The jammer is made from durable ECO Endurance + fabric and is 100% chlorine resistant.