The women's AlphaEdge 4D 'Core Black' collaboration between Stella McCartney and adidas showcases a sleek and stylish sneaker. The upper is made from Primeknit material, offering both breathability and a modern monochromatic black colorway. A sock-like collar enhances the fit, providing a secure and comfortable feel. The 4D midsole, created using advanced digital printing technology, delivers exceptional cushioning that has been meticulously designed based on extensive athlete data gathered over 17 years. The overall design is clean and minimalistic, with subtle Stella McCartney branding on the heel loop and collar.