The Nike Air Max 90 Air Sprung Iron Grey is made from a mixture of recycled materials. The shoe has an off-white base that is paired with various shades of gray detailing. You can find a variety of bright colors on the heel tabs, midsole, and lining. The Swoosh symbol is in a bright yellow, and there is a second caterpillar Swoosh located on the back of the heel. On the bottom, there is a mixture of speckled black, red, and yellow. The Nike Air Max 90 Air Sprung Iron Grey first became available for purchase in January 2022. This item’s starting retail price was $140.