Ternua has announced the launch of the NutCycle project. The company has been collecting nut shells from cider houses in Gipuzkoa, a province of Spain and a territory of the Basque Country, and is using them to make dye. The natural dye is being used by Ternua to manufacture eco-sustainable t-shirts and sweatshirts for men and women. More typically, the dye used for garments comes from petroleum.