The Concepts x Nike Air Max 1 SP TD Mellow delivers a scaled-down version of the iconic retro runner. The Boston-based retailer draws inspiration from music festivals of the late 60s, outfitting the sneaker in an eclectic mix of materials and prints. They include a tie-dye denim base, a bandana-print heel overlay, and a green textile mudguard that nods to a military M-65 jacket. Dual Concepts and Nike branding lands on the woven tongue tag, while mismatched Swooshes feature multicolor florals and stripes. Lightweight cushioning arrives via an Air-assisted midsole, coated in mud splatters that recreate the look of a shoe that was worn at an outdoor concert.