Make a statement in Hyper Boom logo prints. Celebrating the Speedo brand, this sleek black Hyper Boom Jammer includes a side panel print of our evolutionary Hyper Boom graphic in striking shades of blue and red. Lined for comfort, it includes a drawstring waist for a tailored fit. Made from Speedo's durable Endurance+ fabric, which is quick-drying and chlorine-resistant. Plus, the polyester yarn in the fabric is made from 100% post-consumer waste, such as recycled plastic bottles.