The collaboration between Stella McCartney and adidas gives rise to the Stella McCartney x adidas women's UltraBoost 21 'Signal Orange,' which seamlessly combines athletic functionality with fashionable appeal. Imbued with the designer's distinct touch, this shoe boasts a sleek and minimalist upper made from 50% recycled materials, showcasing a vibrant and monochrome citrus hue. Crafted with a breathable mesh construction, it is further reinforced with a glossy patent leather toe and a TPU heel counter. To ensure optimum support, a midfoot cage extends to the full-length Boost midsole, which features an updated Torsion system called Linear Energy Push. The addition of a Continental Rubber outsole guarantees reliable traction on various surfaces.