The Nike Air Max 1 x Concepts Heavy (DN1803-900) was the second instalment of the three part Concepts pack. The pack pays tribute to '60s and '70s festival culture. Every panel is made of a different material and contrasts the last with its patterns. Denim, cow hide, suede, bandana and nubuck sit atop the traditional Air Max 1 sole with visible air bubble. The attention to detail is amazing, from the flower power embroiled swoosh to the speckled midsole. Truly a stand out pair.