These thermal socks are specifically designed to keep feet warm in cold weather with a heat-trapping brushed inner lining and thick fleece interior. The blend of wool, polyester, cotton, and spandex creates a soft, cozy feel while providing excellent insulation for indoor lounging or outdoor activities. The moisture-wicking construction helps manage perspiration to prevent sweaty feet, even while keeping you warm. The elastic design fits most adults with shoe sizes 6 through 11.5, making them versatile for everyday wear. Each package includes three pairs so you can rotate them throughout the week. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See www.P65Warnings.ca.gov.