GOTS applies to a wide range of certified organic natural fibres. These include vegetable fibres such as cotton, hemp, linen/flax and jute, and animal fibres such as sheep wool, cashmere, mohair, alpaca and silk. In addition, the standard permits the use of specific additional fibres that can be blended with organic fibres. The standard covers the entire textile processing and manufacturing supply chain, from fibre processing to finished product.