The Babel Beanie is made from a yarn blend of 80% acrylic and 20% wool, ensuring a cozy and warm feel. It is fully lined with 100% recycled polyester microfleece, adding an extra layer of insulation and comfort to keep you protected from the cold. Matching mittens available. Fashion Knits One-Size 80% Acrylic, 20% Wool Liner: 100% Recycled Polyester Micro Fleece POLARTEC Recycled Fibers Wool Blend