The hybrid model "M991.9" combines the sole unit of the "990v3" with the "991" that was released in 2001 as the 8th installment of the 990 series. It is based on the theme of the beautiful nature surrounding the Flimby Factory in the Lake District of the UK, and is expressed with the image of a "deep forest". The insole design is also impressive. The upper is switched with different materials, which adds an accent. It can be used for both casual and neat styling.

New Balance
New Balance has developed its brand with the concept of supporting all those who love sports. They do not create special products just for top athletes or use super famous sportsmen to advertise, but rather create products for users who are involved in sports to achieve self-realization and balance their lives. When creating products, they prioritize how the shoes fit the user's feet, and have developed a unique "width sizing system" that allows users to select shoes based on the combination of foot length and foot width.