Gerbing Heated Jacket Liner

The Gerbing Heated Jacket Liner is designed to be worn under an existing motorcycle jacket rather than replace it, using Microwire heating elements woven through the fabric to warm the chest, back and arms. Running off a 12V motorcycle battery and drawing around 77 watts, it delivers real, sustained heat rather than the modest warmth of a thermal base layer alone. At 1.1 lbs, the liner stays light enough not to add meaningful bulk, and stretch mesh side panels help it sit close to the body without fighting the jacket worn over the top. Water-resistant heating elements mean the liner can handle damp starts to a ride without immediate concern, and the whole unit is machine washable once the power cord has been unplugged and removed.

A wiring harness connects the liner to the bike's battery, with a weatherproof connector at the hem that disconnects quickly at a fuel stop or when climbing off the bike. Heat output is normally set through a separate Gerbing controller, letting riders dial in anything from a gentle take-the-chill-off setting to serious warmth on sub-freezing mornings. The heating panels sit over the chest, back and arms, the core areas that matter most for staying alert and comfortable rather than stiff with cold. Riders report the liner reaching working temperature within seconds of power-on, which matters when stopped at lights on a genuinely cold morning, and the even spread of heat avoids the hot spots some cheaper liners produce.

This liner suits riders who log serious miles through cold months and want to keep riding rather than park the bike until spring. It is not a complete solution out of the box: the heat controller and, in many cases, a battery harness both need buying separately, which adds to the real cost of getting the system running. Worn under a snug jacket the extra layer adds noticeable bulk, and the cord that runs to the battery feels restrictive if the liner is worn off the bike. Riders who already run Gerbing gloves or pants get the most value by building a full heated system, but even alone it extends the riding season well into the colder months.