Part of the NCAA Pack, the adidas UltraBoost 21 'Louisville' is a commemorative sneaker that honors the Cardinals. Its design showcases a combination of white and red Primeknit on the upper, complemented by black accents on the heel counter and molded three-stripes. The shoe's sustainable construction involves the use of recycled Parley Ocean Plastic and sits atop a full-length Boost midsole. On the right sockliner, there is a 'L1C4' graphic, serving as a homage to the University of Louisville, which stands for 'Louisville First, Cards Forever'. Additionally, the shoe features a woven heel tag with dual adidas and 'L' branding. Unique elements include mismatched chenille tongue tags, with the right shoe displaying the standard adidas logo and the left shoe featuring the cardinal bird.