GLUEING THE PADDING AND FITTING THE LINING
The padding is glued into place inside the upper by hand. Padding has two functions: comfort and protection. It protects your feet from pressure points, and protects the lining from damage, for example from the back of the metal lacing parts.
Next the lining is glued. To fit the lining, the production worker pulls it through the boot, taking care to make sure that it is centred, forms no folds, and is properly glued – she applies more glue if required.
On boots with a GORE-TEX lining, the edge of the upper has to be sealed. To do this, glue is injected between the leather upper and the lining, then they are bonded using heat and pressure.