The ZX 9000 'Silver Metallic' released as part of a collaboration between adidas and the Boston retailer. The shoe's upper features a crinkled silver foil construction, overlaid by grey suede. The Three-Stripes add color, with further Collegiate Navy on the external heel counter. The tongue tag on the left shoe includes a Concepts-branded woven tongue tag, while underfoot, an off-white midsole provides cushioning.