Originally called the adidas Iniki, the adidas I-5923 is influenced by several different adidas models from the 70s and 80s. The I-5923 Runner 'Core Black 2.0' sees the silhouette mainly in black, with white serrated Three-Stripes. The mesh upper features leather overlays on the eyestays, forefoot and heel to add to the retro styling. A more modern touch comes from the Boost midsole, which provides responsive cushioning atop a gum rubber outsole.