What is the strongest outsole construction?
Cement – where the outsole is bonded to the leather upper with an adhesive – is the strongest type of outsole construction. Goodyear Welt – where the outsole is sewn on to the leather upper and the boot can be resoled – is the next strongest type of outsole construction. Direct attach – where the sole in injected into the leather upper in a liquid state and dried onto the boot – is the weakest type of outsole construction.
