The L39ION Replica Bib Shorts are built on the most technologically advanced Racing Series bib shorts we've ever made, revised over years of research and direct input from WorldTour athletes. From the new textile to the updated insert, every aspect was reengineered to lose weight, increase compression, and maintain cooling breathability. The S11 shorts envelope the rider's body in omnidirectional, body-mapped stability through hard cornering and punchy accelerations, and the revised insert features multiple channels of airflow in a low-volume, lightweight, microshock-erasing platform.