Dial up your swim style in Hyper Boom prints. Streamlined in classic black, this sporty Hyper Boom Jammer features an understated take on our new Hyper Boom graphic. The sleek design includes integral support for enhanced comfort, plus a drawstring waist for a tailored fit. Made from our durable Endurance fabric, which is quick-drying and 100% chlorine resistant. One of the yarns in this fabric is made from 100% post-consumer waste, such as recycled plastic bottles.