What is a shank?
A shank is a brace for the outsole - also called a gelenk.
We mould it into the outsole to ensure stability in the heel part.
The strength and size of the shank is decisive for how stable the footwear will be.
Normally, the shank is not in the forefoot, as we want flexibility in the front. However, in the case of footwear with a rigid rocker function, the shank can run through the entire length of the sole.