Why Not Zer0.4 PF Upbringing is inspired by Westbrook’s childhood in Los Angeles. This Zer0.4 continues the usual style of Westbrook's signature shoes, using multi-color stitching upper and exaggerated midsole design, making the entire pair of shoes highly recognizable. The design style follows the styles of Zer0.2 and Zer0.3. The muscular appearance and the bright color match highlight the bold and bold characteristics of Westbrook. In terms of configuration, Zer0.4 cancels the straps, adds a double mesh lace system to increase the wrapping, and the forefoot is equipped with a double-stacked Zoom air cushion, which improves the cushioning effect of the sneakers and makes the energy feedback more obvious. The sole adopts a crystal tire pattern, which further improves the grip of the sneaker. The shape and size of the TPU on the back bottom is almost the same as the one used on Zer0.3, and still maintains the exposed style, which can provide a good anti-torsion effect.