These Heat Holders women's ear muffs trap in heat to keep your ears protected from the elements during the chilly months. They're made from a soft knit fabric with a faux fur trim. Warmth Factor: Heavyweight Measurements: 9.8 Length/Inches, 5 Width/Inches Fiber Content: 100% Acrylic Fabric Description: Knit Care: Machine Wash Country of Origin: Imported