Venture Heat’s latest Bluetooth Motorcycle Heated Liner Pants are the best way to keep your legs warm. The Xtreme Comfort Technology features 2 micro-alloy fiber flexible heating panels which are placed from the thighs to shins to keep the legs warm. And now gives the ability to control your heat level via Bluetooth and your phone through an app offering 10 different settings. The built-in controller is designed to easily flip on top of the riders outerwear, giving easy easy access to 3 temperature settings. The interior of these heated motorcycle liner pants is lined with fleece making the perfect base layer for comfort, performance and warmth. The front of the heated pant liner is constructed with 4-way stretchable softshell fabric for easy wind protection. The rear has a synthetic poly-spandex compression material to wick moisture away keeping users dry while riding. Ride that bike all winter in comfort. Designed to go under any riding pant. *When using this product and the 12V Jacket or 12V Vest at the same time then a motorcycle Y-Splitter will be needed to plug into the battery harness. See images for sizing chart