The Air Jordan 4 Retro SP Union Off Noir builds upon the highly successful 2018 Air Jordan 1 collaboration between Union LA and Jordan Brand. This iteration features a premium black suede upper with contrasting black mesh on the toe box and blue mesh at the collar. Semi-translucent TPU wings, reminiscent of Tinker Hatfield's original sketches, are secured by moulded red eyelets. Matching red accents appear on the woven Air Jordan tongue tag and heel branding. A unique design element exposes the "AIR JORDAN" tag, creating a deconstructed aesthetic. Finally, a "UN/LA" side panel tag and a vintage-inspired yellowed midsole complete the collaboration's signature look.