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Rechargeable Heated Insoles FAQs

THAW Rechargeble Heated Insoles come with a magnetic USB cable and a 2A USB A charge block. Simply plug the cable and the charge block into a plug outlet and attach the magnetic ends to the charging rings on the RC insoles. The cable will magnetically seek and connect to the insoles, even when they are in a pair of shoes, so you do not need to remove your insoles to charge them. There are two status lights on the Y-splitter of the charging cable that shows red when the insoles are charging and turns green when the insoles are fully charged. Please note, you cannot turn on the heat function of the insoles while they are charging.

Approximate recharge times:

  • S/M Sizes – 3 hours
  • L/XL Sizes – 4.5 hours

Yes, all sizes of the THAW Rechargeable Heated Insoles fit four shoe sizes. We highly recommend that you test the insoles in the shoes you want to use them in before you trim them. Once you determine you need to trim your insoles, trim them one shoe size line at a time until you get the desired fit. Shoe sizes can vary between each manufacturer, so testing the insoles before and as you trim them helps ensure a perfect fit.


Warning: When trimming your insoles, be very careful not to cut below the last shoe size line. Doing so will damage the electronics and heating element.

The insoles are turned on when connected to a power source using the included magnetic charging cable. We recommend that you take your charging cable with you every time you plan on using your THAW Rechargeable Heated Insoles. If you are going to be away from a power outlet for a long period of time, pack a power bank with a USB A charging port to make sure you have a way to wake up your Rechargeable Heated insoles.

The status light is located near the magnetic charging ring on the insoles. When the insoles connect to a device, the light will turn solid green for 3 seconds. When the insoles disconnect from a device, the status light will flash green for 10 seconds. When the insoles are on and heating, the status light will flash red every 5 seconds. When the insoles are plugged in, the status light will be solid red when charging and will turn solid green when fully charged.

Your THAW Rechargeable Heated Insoles will go into a deep sleep state after 12 hours of not being charged or used. To wake up your insoles, connect them to your power cable for a few seconds. The status light will turn yellow to show that the insoles are waking up. Once the light begins flashing green, they will be available to connect to your phone.

 If you cannot connect because your THAW app has become unresponsive, force quit the application and relaunch it.

If your app has become unresponsive, force quit the application and relaunch it.


  1. Swipe up from the bottom and hold or double-press your home button
  2. Swipe right to find the THAW app
  3. Swipe up on the app
  4. To reopen the app, go to the Home Screen (or App Library), then tap the THAW app


  1. Swipe up from the bottom, hold, then let go
  2. Swipe right to find the THAW app
  3. Swipe up on the app
  4. To reopen the app, swipe up from the bottom of your screen to the top. If you get ALL Apps, tap it, then tap the THAW app

THAW Rechargeable Heated Insoles are designed to provide a warm, comfortable environment within your shoe. They heat gently to ensure that your feet do not sweat and then refreeze when in the coldest environments. We recommend that you use your THAW RC insoles in well insulated shoes and with warm socks that aren’t too thick and will help wick away moisture. Thick socks can insulate your feet from feeling the heat from the insoles.

THAW RC insoles have an IPX4 rating. This means that they are water and weather resistant and can endure exposure to water. They are not rated to be submerged, so take precautions when using them in known wet environments. We recommend only using your insoles in a well-insulated shoe that won’t let water in, or inside stockingfoot waders when entering water.

No, the batteries are not replaceable. The batteries in the insoles are built-in to provide optimal comfort, battery protection and water resistance.