The ZD soy fiber Socks provide a perfect fit, extraordinary stability and hold, and absolute comfort. Soy fiber comes from a pure natural source which in turn provides all its health care benefits from the soy bean protein even on the most sensitive skins: nourishing, soothing, moisture absorption, deodorant effect, and anti-bacterial property. The hand finishing makes every sock a unique clothing item. The toe and heel areas are strengthened and provide maximum support and resistance, guaranteeing an increased durability. It is biodegradable and recyclable, and these properties are maintained after repeated washing.