Japanese denim differs from other countries denim because of the way it’s manufactured; typically, the denim is woven on vintage shuttle looms, and it takes a seasoned and skilled craftsman to operate the loom, which can be anywhere from 60-80 years old.
In many other countries, denim is manufactured on modern projectile looms, which cuts the time it takes to make the fabric significantly in comparison to weaving it on a vintage shuttle loom. However, this often means that quality is sacrificed in the process, which is why Japanese denim is not only higher in quality, but also higher in price.