The Nike Air Max 97 Air Sprung Iron Grey features a grey, yellow, and light blue textile upper made of recycled fruit fibers, as well as other upcycled fabrics. Caterpillar and butterfly embroidery on the tongue and side Swoosh depicts the butterfly's metamorphosis each spring. On the insoles, the collection's signature mushroom illustration completes the design. The Nike Air Max 97 Air Sprung Iron Grey released in February of 2022 and retailed for $180.