Hello, original poster
Vibram is a famous Italian rubber manufacturer. Its soles are commonly known as V soles, aviation soles or gold soles. The rubber specially designed for soles adopts aircraft tire standards. Made of rubber, it has excellent wear resistance. In addition, its sole design has good anti-slip properties. It is generally chosen for good outdoor shoes. You can see that the soles of mid-to-high-end products from TNF, Wolf Claw, Mele and other brands will have this yellow trademark.
In the reputation of outdoor shoes, the sole of Gore-Tex fabric and vibram is considered to be a golden combination.