Released in May 2018, the Nike Air Max 97 Ultra '17 'Obsidian' pays homage to Christian Tresser's iconic shoe while adding a modern touch. The stylish sneaker features a sleek dark-blue motif and replaces the skinny leather overlays of the original design with rubberized strips that create a distinctive wavy, bullet train-inspired appearance over a breathable mesh upper. Keeping true to its heritage, the shoe retains the full-length Max Air cushioning unit introduced in 1997, now housed in a crisp white foam midsole, guaranteeing a comfortable and cushioned stride.