The adidas PureBoost 'Mystery Ruby' is designed specifically for urban running with its engineered features. Its breathable knit upper offers a snug fit that feels like wearing a cozy sock. The shoe also includes a molded heel counter, which enhances stability during runs. To provide maximum comfort, the PureBoost is equipped with a full-length Boost midsole that delivers exceptional cushioning. Additionally, the shoe's Stretchweb rubber outsole extends up the inner side to provide enhanced arch support, offering runners increased comfort and stability throughout their strides.