The Organic Content Standard (OCS), a voluntary standard developed by Textile Exchange, identifies products containing natural fibres from organic cultivation, such as cotton or linen. Different from conventional agriculture, certified organic cultivation does not use synthetic chemical pesticides or fertilisers.

Products with the Organic 100 label contain a minimum of 95% natural fibres from certified organic cultivation. The origin of these fibres is documented throughout the entire supply chain and verified by independent, accredited testing agencies. The certificate only refers to the material/fibre content of the product.