This Nike Air Max '93 is a part of the "Metals" Pack. Made in collaboration with UK-based retailer, size?. One of two colorways set to drop alongside each other, inspired by the the periodic group of “rare earth” metals known as lanthanides. A limited release, look out for these exclusively in-store at size? as well as online at size.co.uk in late May of 2014. Retail is set at, $168.