Tensile resistance and elongation

What does it tests:

It measures the tensile resistance of material (leather, upper, textile), its maximal elongation and maximum force needed at final point of elongation.

Why is it important:

Each material has specific structure, which defines its hardness, density, flexibility, endurance and therefore resistance to different mechanical and chemical forces.. The quality of material to tensile resistance and elongation characteristics are of vital importance in the production of footwear in the phase of combining upper and sole.