Classic sports styling. Speedo raided their design archives for the new black Hyper Boom Spliced Jammer, which features a revival of their iconic go-faster Boom logo stripe in bright yellow. Sleek and stylish with integral support for enhanced comfort, the jammer includes a drawstring waist for a tailored fit. Made from Speedo's 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.