Premier sneaker-store pioneers Solebox partners with Diadora to redesign the cult-favorite N.9000 silhouette. Dubbed "Ferro," which translates to "iron," this model is composed of a grey and light blue color palette. The bright blue is lightweight kangaroo leather, while the toe and heel wraps are made from a soft grey suede. Debossed "Solebox"-branding is seen on the heels. The Diadora x Solebox N.9000 - "Ferro" is available now, in-store only, at KITH Manhattan.