FULL SOLE OF HEATING The whole sole of the foot is now covered with the heating elements 3 HEATING LEVELS Adjust three heating settings (High, medium, low) with just a simple press of the button LONG-LASTING WARMTH Starts heating in seconds with up to 11 hours of run-time from the 7.4V lithium-ion battery EXTRA PROTECTION The heating elements are wrapped with silica rubber to prevent any short circuit while in use Previous page Next page 3D Flex-Stitch Technology 3D Flex-Stitch Technology seamlessly integrates heating elements into the socks, preserving their natural stretch and minimizing discomfort. Enjoy warmth without losing the flexibility of regular socks. Previous page Flat Elastic Connecting Cord Flat seamless flex wire conforms to the contours of the foot, reducing the sensation of the wire. LED Power Indicator Battery power and heating level indicators near the power button for convenient reading. Stay-Put Fit Construction Y-Stitched Heel fits the shape of the foot slave, and does not fall off. Stretchy Cuffs Achieve the perfect fit with stretchy cuffs. Compact Battery Pocket Smart battery pockets with elastic fleece material. (No zipper request and the battery can stay in the correct place.) Multiple Colors Various colors to match any outfit or mood. Next page