The 424 x Arsenal FC x adidas UltraBoost 21 'Black Scarlet' sneaker is part of a collaboration between the renowned LA-based retailer and the iconic London football club. This shoe is part of a larger collection that showcases the partnership between the two entities. The upper of the shoe features a sleek, monochromatic black design, created using recycled Parley Ocean Plastic and highlighted by a contrasting red 424 tongue tag, which pays homage to the distinctive interior architecture of Emirates Stadium. Providing exceptional comfort, the shoe is equipped with a full-length Boost midsole that offers responsive cushioning, coated in black to maintain the sleek appearance. Additionally, a Continental rubber outsole in a vibrant scarlet color adds a striking touch to the design.