100 youth r core supra dh jerseythis r core supra dh jersey from 100 is a youth specific jersey for downhill racing the r core range is 100s premier collection of technical riding clothing developed from lightweight durable materials and designed to provide protection and comfort with every ride breathable improves airflowthis jersey is made from quick drying antimicrobial polyester and features a breathable mesh neckline which improves airflow and comfort a drop tail which provides f