1 of the 2 Nike AIR MAX 90 SE colourways we checked contain no animal materials, confirmed by both the materials list and the retailer’s own description. 1 contain leather, suede or another animal material.
1 animal-free colourway from £104 at Zalando

Checked twice: the EU material label and the retailer’s own description are both clean.
Contains animalThe material label itself lists leather.