Backpack technical tests.
We conduct laboratory tests to validate components: fabrics, buckles, straps, foam padding, zips, etc. For example, for a fabric: resistance to abrasion & tearing, colour-fastness in UV light, resistance to washing, waterproofing... Then, a test is conducted on finished product replicating accelerated demands on the bag over a number of years to check strength of assemblies. The backpack is weighted then placed on a dummy which reproduces the movement of fast walking through thousands of cycles.