Originally Posted by ThunderMarch
Blind welt refers to the welt at the waist being cut very close to the uppers and being concealed as far as possible. Giving a sleek, beveled appearance. I believe most Japanese makers do this.
Actually it's the holdfast cut more towards the center of the insole so all of the welt is completely hidden underneath the insole.
The outsole stitchings is then very skillfully sewn on
Can be done at the waist only or all the way around.