Ultra-Compact Travel Satchel - Grey

The volume of each backpack is measured using a standardised method: we fill the main compartment as well as each pocket with little balls. We then empty the balls into a graduated container which provides the equivalent volume in litres.

Then, a test is done on the finished product that acceleratedly simulates the kind of treatment it will be subjected to over the years, to assess the assembly strength. The backpack is filled with weights and placed on a dummy that reproduces the movement of fast walking through thousands of cycles.