The Etonic Quazar style dates back to 1984 with the original Quasar ZX model,a state-of-the-art training shoe for those who require heavy duty stability. Its Graphite Dynamic Reaction Plate and medial stability pillars help counteract excessive pronation. Plus,a PVC heel cup and dual-density foot cradle increase rear-foot support. This men style is black nylon fabric and black suede with white leather inserts. - Suede leather running shoes with nylon upper - Leather inserts in contrast - Cotton laces in contrast with the upper - Z-Bar saddle system for midfoot support - PVC heel cup - Dynamic Reaction Plate for increased stability - Dualdensity phylon mid-sole - Rubber bottom outsole