The Nike Air Max 93 “Metals” x Size? ($170) is a worldwide exclusive that will be available starting May 3Oth. The shoes are based on metals from the periodic table that includes platinum, iron oxide, zinc, copper, and hematite. The colors are represented throughout the shoes in burnt red, orewod brown, cool grey and platinum white. Based on the Air Max 93 each shoe features a jacquard mesh toe box, iconic 270-degree exposed air unit and a soft leather suede and patterned synthetic upper.