Sizing Information This sneaker runs small. Consider sizing up for a more comfortable fit! The iconic Air Max 180 and Air Max 93 are immortalized on the all-new Women's Nike Air Max 270 Casual Shoes. This fresher-than-ever model was originally named the Air Max 273 – a mathematical nod to 180 + 93. However, the silhouette was changed to reflect all 270 degrees of visible Air on the heel. Featuring an exaggerated tongue, large volume Max Air unit and heritage branding, these sneakers offer the best of both worlds - old school details and modern comfort.