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, etc. Then a test is conducted on finished product replicating forces on backpack over a number of years in order to check strength of assemblies: the backpack is weighted, then placed on a dummy which reproduces the movement of fast walking over thousands of cycles.

The heavy stitching research and development department, Quechua's partner for researching and testing its components and assembly, conducted tests simulating backpack ageing. These tests are conducted on the components, seams and finished product. Quechua uses the results to guarantee the bags tested for a period of 10 years, starting from the date of purchase indicated on the receipt.

The warranty covers the defects of the backpack, excluding those resulting from normal wear and improper use. This special 10-year warranty is only valid on presentation of the product and receipt. If the product is covered by the warranty, it will be repaired or exchanged free of charge. This sales warranty does not affect the statutory rights applicable in your country/state.

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

1 - Loosen all the straps (shoulder straps, belt, load adjuster straps). 2 - Put the backpack on. 3 - For backpacks with a capacity of 50 L or more, place the belt on the hips (it should encompass the iliac bones of the pelvis) and tighten. For smaller backpacks, the belt should be placed around the waist. 4 - Tighten the shoulder straps. 5 - Adjust the load adjuster straps as needed.

Put your bedding at the bottom. Place the heavy equipment close to your back. Pack your clothes around these items. Keep your waterproof jacket and/or fleece to hand. Place small items for daily use (sun cream, map, glasses, etc.) in the pockets. The water bladder can be placed in the compartment generally provided down the back.

The product's environmental impact is calculated over its entire lifespan, using various indicators. An overall score from A to E is given to help you easily identify the most eco-friendly products by comparing products of the same type (T-shirts, trousers, backpacks etc.) .Decathlon is committed to displaying the environmental information of its products. For more information: http://sustainability.decathlon.com/