• Lectra Battery Heated Socks
• Made from a blend of 36% wool, 33% winter acrylic, 22% Hollofil polyester & 9% nylon
• Heating system is designed to keep your feet at a perfectly comfortable warm temperature
• Low amperage virtually eliminates any possibility of shocks or burns, even in wet conditions
• Each sock requires (1) D battery (sold separately)
• Weight: Approximately .56 pounds
• Shipping Dimensions: Approximately 16 x 5 x 4 inches.