Thermacell ProFLEX Heated Insoles foot warmers are the newest addition to the Thermacell line. Designed to make any cold weather activity more comfortable and enjoyable, they have all the features of the original Thermacell Heated Insoles but are more flexible and comfortable, have longer use time, contain a removable and rechargeable battery and can be charged using either USB cable or wall charger. Simply place Heated Insoles inside footwear and activate heat with wireless remote, then adjust heat (medium or high) or turn off with remote as desired. The ProFLEX Insoles' durable, lightweight, soft cushion polyurethane foam construction is breathable, conducts heat efficiently and has great retention and shock absorbency for all-day comfort. They maintain a steady temperature inside your footwear, keeping your feet at normal body temperature or slightly warmer as desired.
Powered by rechargeable, removable lithium-ion polymer batteries embedded in the foot warmer insoles. Can run continuously up to 5 hours - or much longer if used in intervals - on one charge and recharges fully in 4 hours. When one battery runs out, simply insert a new battery without even removing the insoles from the shoes for continuous use all day. Small, lightweight remote fits into a pocket or attaches to a belt. Thermacell ProFLEX Heated Insoles function equally well in damp or dry environments and can be used in any type of footwear desired, whether boots, shoes or waders and are highly water resistant against both moisture from outside the footwear and perspiration. Made for men and women, the ProFLEX Insoles are customizable to fit any shoe size $179.99, thermacell.com.