Thermacell Heated Insoles foot warmers take the chill out of ice fishing. Place Heated Insoles in your boots and activate with the remote, then adjust heat (medium or high). The insoles maintain a steady temperature inside your shoes or boots, keeping your feet around normal body temperature. Powered by rechargeable, built-in lithium-ion polymer batteries, the insoles can run continuously up to 5 hours or longer if used in intervals. The battery recharges fully in 3 hours. The insoles come in a range of sizes and can be trimmed to fit. MSRP $129.99. www. thermacell.com — Shawn Perich