A single layer of Zoom Air makes for one of the comfiest rides around. But a double stack of Zoom with a foam sockliner is comfort on a level that's unbelievable. The design philosophy of the Double Stacked is about comfort informing style, with exposed layers of Zoom cushioning in the heel and forefoot, an unfinished TPU Swoosh and deco stitching on a breathable mesh upper giving a modern DIY vibe to this Summit White colourway. Who says rebellious style can't be comfortable?