Cellulose fibres are obtained from renewable raw materials, especially wood. In contrast to artificial fibres such as polyester, they are biodegradable as they are cellulose-based. However, there are risks lurking in the supply chain: from the origin of the wood to the deforestation of trees and the complex treatment process in which many chemicals are used. In 2023, we used 20% more sustainable cellulose fibres in the main material. Cellulose fibres include viscose, modal and lyocell, for example. By 2025, we want to obtain 65% of our cellulose fibres from more sustainable sources.