Classic Sports Styling, Straight From The Speedo Design Archives. This Sporty Black Hyperboom Jammer Nods To Our Brand Heritage With A Coral-Coloured Revival Of Our Iconic Go-Faster Boom Logo Stripe. They'Re Cut With Integral Support And An Adjustable Drawstring For Comfort And Security During Training. Be Ready To Go Again In The Quick-Drying Endurance+ Fabric, Designed For Durability With High Chlorine Resistance.