adidas UltraBoost 4.0 'Chinese New Year' (Unisex) Core Black / Red / Multi-Color Running Shoes BB6173

The adidas Ultra Boost was first launched in 2015 and is adidas’s flagship running shoe—its innovative outsole redesign and distinctive aesthetic redefined people’s traditional understanding of running shoes. The adidas Ultra Boost 4.0, released in 2017, features a newly updated Primeknit one-piece upper with three-dimensional textured details, enhancing the sock-like fit. Unlike the 3.0 version, the semi-transparent side cages return to a solid-color design; some models replace the original TPU with a ballistic nylon–like material, and matte-finish heel counters are added for visual and functional harmony.

Size Foot Length 36.0 220mm 36⅔ 225mm 37⅓ 230mm 38.0 235mm 38⅔ 240mm 39⅓ 245mm 40.0 250mm 40⅔ 255mm 41⅓ 260mm 42.0 265mm 42⅔ 270mm 43⅓ 275mm 44.0 280mm 44⅔ 285mm 45⅓ 290mm 46.0 295mm 47⅓ 305mm 48.0 310mm 49⅓ 320mm 35⅔ 215mm

Upper material: knitwear Style: athletic Water resistance level: ipx4