adidasAdidas UltraBoost 4.0 'Grey Split Boost'

A split black-and-white midsole and bright lime heel accent set apart the adidas UltraBoost 4.0 'Grey Split Boost' (G54003), a men's running shoe with a clear contrast of colors and textures. Its grey knit upper gives the pair a textured look from toe to collar. Grey Primeknit covers the upper, with black overlays, laces, lining and heel frame. A separate black lace cage crosses the midfoot, while lime accents the heel frame and tongue. The midsole combines white at the forefoot with black at the heel and uses adidas Boost foam cushioning; the outsole is black.