The Nike Air Max 90, originally designed by Tinker Hatfield, gets a contemporary revamp with help from West Coast sneaker institution, Undefeated. The Undefeated x Air Max 90 dropped in this white and Solar Red colorway in December 2019. A full-grain leather upper heightens the shoe's premium feel while setting it apart from ubiquitous mixed-material offerings. Brilliant red accents on the tongue, heel, around the perimeter and underfoot provide contrast, emphasizing co-branding hits.