What does the sneaker shape mean?

The "shape" of a sneaker refers to the physical silhouette or design of the shoe. Different sneaker models and styles have distinct shapes that are recognizable to sneaker enthusiasts. Some sneakers, such as the Air Max 1, have undergone design changes over the years which can alter the shape of the shoe. This can be a source of contention among sneaker enthusiasts, as some may prefer the original shape of the shoe while others may prefer the newer design.