The fabric is made from 100% FSC-certified viscose. 100% FSC-certified Viscose is made from natural sources such as wood and agricultural products and comes from sustainably managed plantations. The buttons are made of Bioresin. Bioresin is an environmentally friendly plastic and is made from vegetable oils. Bioresin is also 100% biodegradable and reusable. All components of the garment are oekoetex-100 certified, which indicates that the garment is harmless to people and nature.