E-Series Slip-on Jazz Shoe in Black. Top selling E-Series slip-on jazz shoe needs no introduction. Brand new in box only worn for a few minutes when my daughter tried Jazz at last year’s dance convention. Our loss your gain. In excellent new condition and kept in box since. The neoprene arch hugs feet to when pointing and flexing to avoid bunching. More prime features include moisture absorbent lining to keep dry and padded insole for extra support.