Pivoting hard shell impact foam protector.Hard shell and 3DF ventilated impact foam.Anatomically correct, pivoting design for left and right sides ensures perfect motion.Slim shin plate that also fits inside boots.Vented plates for maximum airflow.CE test Pivoting hard shell impact foam protector.Hard shell and 3DF ventilated impact foam.Anatomically correct, pivoting design for left and right sides ensures perfect motion.Slim shin plate that also fits inside boots.Vented plates for maximum airflow.CE test