41Alpaca/34Acrylic/23Nylon/2Lycra Low-cut socks featuring arch support and built-in cushioning with natural, breathable alpaca which keeps feet dry and comfortable all day long. Made from Natural Alpaca and other microfibers. Is 100% Wool Free, Hypoallergenic, aiding in good foot health & odor control. Plush terry lined foot bed allows for comfort and cushions feet, reducing friction, so feet are more comfortable and blister free. Alpaca keeps feet warm in cold climates and cool in warm climates, a perfect all-season property. Machine wash in cold water and tumble dry or air dry. Makes a great gift!