These winter-weight thermal crew socks feature a soft sherpa-lined interior providing maximum warmth during the cold seasons. They come with silicone gripper-dots on the sole to prevent slips and falls. They are comfortable for wearing with any sleepwear while lounging around the house. Available in a 3 different prints. One size fits most. Made of 100% Polyester. Machine wash gentle cycle, line dry. For better results, hand wash.