Abrasion and friction resistance test: for example, we check that the fleeces do not pill using tests conducted in laboratories. Colour retention test: we check colour fastness to ensure that colours do not bleed when coming into contact with saliva. Ageing test: repeated washing must not affect the properties of the fabric, its behaviour, thickness or appearance.

The product's environmental impacts are calculated over its whole lifecycle and with different indicators. An overall ABCDE rating is given to help you easily identify products with the best environmental performance by comparing and contrasting products of the same type (T-shirts, trousers, backpacks, etc.). Decathlon actively promotes this environmental rating initiative. For further information: http://sustainability.decathlon.com/

- To offer you soft and comfortable products in practice, we use organic cotton. It is grown without chemical fertilisers, pesticides or GMO, reducing the risk of ground or water pollution. - By recycling plastic bottles to produce our polyester, we reduce the use of petrol-based resources while keeping the material's breathability in practice.