WMNS) adidas Ultraboost 20 。Adidas has updated its UltraBOOST series with its latest adidas UltraBOOST 20. The successor to what might be one of the most influential cushioning technologies features a foot-hugging Primeknit upper with stitched-in reinforcements that provide extra stability and a soft elastane heel for more comfort. The black silhouette with a shimmering multi-colored midsole takes you either to the running tracks or comfortable through your Christmas shopping spree. - adidas ultraBOOST 20 Cblk/Cblk - adidas Primeknit+ textile upper - Tailored Fibre Placement locked-in fit - High-performance running shoes - adidas Primeknit+ textile upper - Stretchweb outsole with Continental™ rubber