adidas Spider 4 Mens Track Shoe Synthetic Weight 5.4 Ounces (size 9). Recommended Events: 100m, 200m, 400m, 4x100m, 4x400m, 110 high hurdles, 400 intermediate hurdles, long jump SPRINTWEB forefoot Air Mesh Upper. Synthetic Overlays 8mm heel. Pebax nylon plate outsole Replaceable Spikes