This certification is awarded to products that have been manufactured according to the strict environmental guidelines of the International Association of Natural Textile Industry (IVN). IVN certification is equivalent to compliance with the Global Organic Textile Standard (G.O.T.S.). It focuses on sustainable production methods, respect of at least minimum standards of employee welfare, and the exclusive use of environmentally sound dyeing chemicals. Dying process complies with G.O.T.S. standards, which can mean that limited colours are available in some cases.
Certificate holders are subjected to regular on-site audits to ensure they fulfil these requirements.