Running Bare High Rise Jazz Pant A fresh take on an RB classic: the High Rise Jazz Pant is made from performance supplex, which offers a firm hold, breathability and moisture wicking, and a dry-handle ideal for studio and mat work. With the comfortable, wide blade waist, boot-cut leg flaring from the knee and reflective bare stamp logo, this is a versatile lounge and low impact style for sizes 8-20.