Rapha Core Lightweight Jersey Rapha's Core Jersey is the trusted choice of cyclists around the world for any kind of riding. For the hottest days, there is a lighter, brighter cousin: the Rapha Core Lightweight Jersey. With the fit and features of the original, two ultralight fabrics to bring Core comfort and performance to sweltering rides in hot and humid conditions. The jersey front makes use of a highly breathable, lightweight mesh to promote airflow and regulate body temperature, with a denser knit fabric on the back for protection from the sun. Throughout, the same signature finishing touches that define the Core collection are present, with three gusseted pockets that expand to carry all your riding essentials, subtle logos and a signature armband. The lighter weight fabrics dry quickly so you’ll never catch a chill, the full-length zip adds on-the-go adjustability and a wide elastic gripper to keep your jersey secure.