Released as part of a collection for the 30th anniversary of the Air Max 90, the Air Max 270 React 20 ‘Bubbles’ looks to the similarities between Max Air and bubble wrap. As a result, the shoe’s upper eyelets and tongue sport a texture modeled after the packing material. Iridescent detailing marks the forefoot, heel and Swoosh, while underfoot, a React forefoot combines with a 270 Max Air unit in the heel for cushioning.