The upcoming colorway introduces a thermal heat map treatment paired with bold structural overlays. The upper is constructed with a deep purple base overlaid with a bleeding gradient of red, yellow, aqua, and blue hues that simulate a radar scan. Black accents settle across the tongue, laces with orange trim, collar, and outsole, giving the multi-toned color arrangement a grounded frame. Shifting away from the softer contours of the Ja 3, the Ja 4 features a more angular build with heavily textured materials and enlarged support structures surrounding the midfoot and heel. The Nike Ja 4 “Radar” releases in October 2026 for $140 USD.