Leather Jazz Shoe with Neoprene Insert Under ArchSo Danca's top selling jazz shoe is a hot seller for a reason! Simply the best fit with our cup the heel technology, superior smooth leather and arch hugging neoprene. Smooth leather upper with neoprene insert under the arch. The best ankle and heel fit in the industry, perfect for those with narrow heels and small ankles. Rubber toe pad and heel make jumps and turns effortless.