How is the volume of a bag measured? :
The volume of each backpack is measured by a standardized method: we use small balls to fill the main compartment as well as every pocket. Then emptied the bullets into a graduated container, which then gives us the volume in liters.
Bags certified "Air Cooling" underwent a laboratory test to measure the effectiveness of the ventilation system of the portage: a heating and sweating manikin to measure scientifically and objectively the ability of the bag to limit perspiration . This label is only granted bags whose performance is significantly superior to a model "basic" range (without particular ventilation system). We also compare them to competing products on the market.
All our rucksacks have been tested in use by representative users of those for whom the products are designed, under conditions identical to those you can find in use. In particular, our "Testing Missions", associate product manager to persons not affiliated with QUECHUA, to test, develop and validate products.We do laboratory tests to validate components: fabrics, buckles, straps, foam, zippers ... Example, a fabric resistance to abrasion, tearing, UV rays, washing, waterproofing ... Then a test on the finished product in order to reproduce the stresses of bag over the years to control the resistance of the assemblies. We put it, filled with weights on a dummy which imitates the movements brisk walking, on thousands of cycles.