Experience an energized elevation on the go with the super-sporty adidas Ultraboost 21. Made with high-performance Primeblue materials, its recycled Parley Ocean Plastic construction offers durable comfort and support through varied levels of activity. Get a firm, cushioned style to take over your activewear rotation with the adidas Ultraboost 21! adidas Ultraboost 21 features: Full lace closure offers superior protection and a locked-down style. Primeknit+ upper ensures enhanced breathability and lightweight comfort. Fleece textile lining quickly absorbs moisture for a cool, dry fit. Responsive BOOST midsole offers optimal energy return with every stride. A supportive heel counter secures your foot to avoid unnecessary slippage. Stretchweb with Continental rubber outsole ensures improved grip and traction at high-abrasion areas.