At the heel
USB-C and a switch with LED
Charge by cable, the LED shows the setting.

Insoles with a built-in battery. Set the level with the remote or the switch at the heel.
Run times measured indoors; outdoors below 32 °F, about an hour less.
Sizes
In the box
Charging and care
For long hours when your feet stand still.
Tip: pre-warm them on medium before you head out.
Heated insoles with the battery built in – adjusted by remote control.
At a glance
3settings
Heat
About 104 to 149 °F.
7h
Run time
Up to, on the low setting.
USB-C
Charging
Port at the heel.
3sizes
Trimmable
From EU 35 to 46.
Figures per the manufacturer.
Remote control
The battery sits in the insole, the remote hangs on your keyring. One press and your feet get warmer – in a hunting stand, on the sidelines or waiting for the bus.
Fits your shoe
Choose the size your shoe size falls into (about US women's 5–7.5, 8–11 or men's 9.5–12). Then lay your old insole on top and trim the toe along the printed line. Leave the battery area at the heel alone.
The details
At the heel
Charge by cable, the LED shows the setting.
Build
Velvet, TPE foam, EVA.
Feel
Velvety top.
In the box
Same tech in all three sizes.
S for EU 35–38, M for EU 39–42, L for EU 43–46. Then trim the insole at the toe to your length.
Per the manufacturer, indoors 6.5 to 7 hours on low, 5 to 6 on medium and 3.5 to 4.5 hours on high. Outdoors below 32 °F, about an hour less.
Through the USB-C port at the heel, from a wall adapter or the BergHeat Power Bank.
No, you can also pick the setting with the switch at the heel. The remote lets you do it without taking your shoes off.
Most winter boots and hiking shoes with a removable insole. They're a little thicker than a regular insole, so very snug shoes often won't take them.
Not in the machine. Wipe the surface with a damp cloth and let them dry fully, keeping the charging port dry.
Ready
$245.99
Choose sizeShips within 24 hours on business days