Introducing the all new, second generation Heated Insoles. Featuring the most sophisticated heating technology on the market with rechargeable, smart lithium ion batteries that bring you adjustable heat that lasts up to 6 hours. A convenient, pocket-sized remote control makes it easy to adjust the temperature tokeep your toes so warm you will besmiling from ear to ear. Say goodbye to cold feet and hello to warmth, comfort and convenience. Cold toes are the most common reason for outdoor adventures to be cut short, whether you arehunting, ice fishing, working, or skiing. The Outrek II Heated Insoles are your best option for battling cold winters and cold feet. Our heating technology utilizes the safest, high-tech micro-wires and premium lithium ion batteries to bring you effective heat controls that will literally melt the ice. With the option to choose your own shoes or boots, the styles and adventure possibilities are endless. Heated Insoles fit most closed shoes and boots TRIM TO FIT Heated Insoles come in two sizes, medium and large. Both sizes fit a wide range of shoe sizes and then trim to fit your exact shoe size. TIP: Use your existingshoe insole as a template and get the perfect fit, every time. Remove the insoles in your shoes or boots and swap them out for your new heated insoles. REMOTE CONTROLLED HEAT! Using the remote control you can then adjust the heat with a simple press of a button and instantly feelyour toes warm up. Take your heated insoles on any adventure! We sell heated insoles to some pretty die hard people, but everyone has their limit, and surpassing that limit will require some premium high-tech gear.