Air Jordan 4 Retro SB NavyNike SB and Jordan join forces once again to rework the AJ4 design, so you can skate all day and land big tricks. It features the original '89 shape around the toe for a better fit and a deconstructed upper with flexible plastic details. Nike Air in the heel helps you conquer epic stair counts, and since grip matters, the rubber outsole adds traction where you need it most.