The new Phelps MPULSE Jammer in black and gold is a race day essential. Phelp's brand aims to create technologically advanced, performance-enhancing swim products, which are developed by Michael Phelps and coach Bob Bowman.
These new MPULSE Jammers use DYNAMIX technology in the fabric which is a high compression textile perfect for swimwear, the fabric is breathable, fast drying, chlorine resistant and has durable elasticity which gives amazing movement for your legs.
These jammers have flat lock stitching which reduces drag and improves swimming efficiency. They feature full inner brief lining which offers fabulous support and modesty. Internal silicone leg grips to ensure a tight fit and also a drawstring waist which makes them extremely comfortable and easily adjustable.