PLEASE NOTE: Print Patterns May Vary. In collaboration with Boston-based boutique Concepts, the Nike Air Max 1 SP Concepts Mellow pays homage to ’60s and ’70s youth culture with its fabrication and palette. It is constructed with a medley of bleached denim, ripstop canvas, red velour, and bandana materials, each contrasting one another. The embroidered “flower power” Swoosh nods to common clothing design themes of the 1970s. At the base, a speckled Air Max sole completes the design.