These one size fits all Hotronic Heat-Ready Insoles can be trimmed to fit any foot up to size 32.0 (metric). Quickly and easily install your heat elements and connect your battery pack and you're all set for hours of warm feet in even the coldest weather. Use Hotronic insoles as ski boot heaters, or in any other footwear for optimal warmth and comfort in all conditions. These heat ready insoles are intended to be used with Hotronic batteries and heating elements. Save money with this older style. Same product as the current one with a slightly different logo. 

• Universal insoles for Hotronic heat elements
• Fits any size foot up to 32.0 cm (size 17 US)
• Trim to fit for customized insole
• 1 pair

Part Number: 01-0100-1301