The UltraBoost 4.0, a part of adidas' line of Primeknit sneakers featuring various colors, showcases a predominantly grey knitted upper that provides a snug fit like a sock. Delicate touches of a rainbow design can be found sporadically, adding a pop of color. The midsole of the shoe boasts a full-length Boost cushioning technology, which stands out in white against the grey upper. For enhanced traction in unfavorable weather conditions, the shoe is equipped with a Continental Rubber outsole. Additionally, stability is ensured through the incorporation of Torsion.