Working on adidas' popular silhouettes, the adidas Ultra Boost 4.0 Legend Ink has shed its weight in favor of a breathable and lightweight Prime knit upper. These runners flaunt carbon, legend ink, and a black core that conceals the technologies underneath. These Ultra Boost 4.0 iterations feature a Prime Knit upper, a full-length Boost midsole, and a heel counter. The silhouette adopts a black core and legend ink upper, with TPU caged overlays on the side panels arriving in black. To break the stealthy theme, these runners flaunt a full-length Boost midsole dressed in white. A perforated leather heel counter with Ultra Boost inscription is included to up the performance. For extra comfort, the collar is padded, while the upper has perforations for breathability. Finally, a black rubber outsole with serrations completes this sneaker's design. What our experts love about the Ultra Boost 4 Legend Ink is the additional cushioning. These runners have more cushioning than preceding models, making them ideal for running or slipping onto a sneaker show. The adidas Ultra Boost 4.0 Legend Ink was released on January 1, 2018, retailing for $180.