The biggest difference is that although both use Gripknit Luna, the thickness is about twice that of the GX. When you touch the inside of the shoe, you can feel a thick layer of sponge. Although it is thicker than the GX, the Luna has a better ball feel. The Luna's wrapping feeling is so tight that there is almost no space between the foot and the inside of the shoe, which gives you a sense of security. As long as your foot doesn't move out and there is room for you to move around, people with wide feet may find it difficult to wear it at first, but it may get better after wearing the shoes. The low-top of the GX is more suitable for people with wide feet.
