This style has been made through natural dying process with zero chemicals for healthier wearing and zero impact on enviroment. Vally Turtleneck is warm and fuzzy, knitted in re-cycled wool and organic cotton yarn and available in the naturel undyed yarn. Wear it togheter with Dicte balaclava to stay cool and warm. 50% Recycled Cotton, 50% Organic Wool Sustainable: Yes - Undyed