Classic sports styling. We’ve raided the Speedo design archives for the new navy Hyper Boom Spliced Jammer, which features a revival of our iconic go-faster Boom logo stripe in vibrant green. Sleek and stylish with integral support for enhanced comfort, the jammer includes a drawstring waist for a tailored fit. Made from our durable Endurance+ fabric, which is quick-drying and 100% chlorine resistant.