Drawing inspiration from the original UltraBoost silhouette, the adidas UltraBoost 4.0 'Grey Lime' released in April 2019 is a testament to enhanced design and functionality. Crafted with meticulous attention to detail, this iteration boasts a streamlined and upgraded engineering that surpasses its predecessors. The upper is expertly adorned in Primeknit mesh, providing a snug and comfortable fit that molds to the wearer's foot. Reinforcing stability, the distinctive Three-Stripes lacing cage offers enhanced support. Emphasizing performance, the Torsion system, Boost midsole, and flexible outsole work harmoniously to optimize energy transfer, amplifying every stride.