Method used to measure the strength of the bond between the upper part (the material that covers the foot) and the sole of a shoe, including any interlayer between them. During this test, the shoe’s upper part is subjected to a controlled force to separate it from the sole. The force required to break this bond is measured, providing insight into the strength and quality of the adhesion between these components. This test is essential in evaluating the structural integrity of footwear, ensuring that the upper part remains securely attached to the sole even under stress and use. It helps determine the overall quality and durability of the shoe’s construction.
