Jordan 4 Retro OG SP Undefeated reissues the cult Undefeated AJ4 in a 2025 drop, pairing a deep green nubuck upper with MA‑1 flight‑jacket inspired detailing. Built for collectors and streetwear styling, it balances heritage cues with modern construction. Key attributes: Green | Deep green | Clementine | Black | Sail | Nubuck | Visible Air cushioning | Durable rubber outsole | Removable velcro tongue patch | Lace‑up closure | MA-1 flight-jacket inspired silhouette | Matte TPU wing eyelets | Undefeated five‑strike branding | Clementine contrast accents | Removable velcro tongue patch | Dimensions & fit: Regular fit (true to size) | Composition & care: Nubuck upper | Mesh panels | TPU wing eyelets | Foam midsole with visible Air unit | Rubber outsole