Gerbing 12V Heated Insoles The Gerbing 12V Heated Insoles provide ultimate warmth when riding in cold weather. With these premium 12V heated insoles you have endless, toasty riding ahead of you. These insoles incorporate Gerbing's patented microwire technology that rises to full temperature in just seconds and can be easily attached to our heated pant liners or can be powered independently. Features: Microwire heating elements deliver soothing warmth EVA material Lifetime warranty on the heating elements Gerbing 12V Insole Power Options: Plugged directly into Gerbing heated pant liners Powered by Battery Harness, Y-Harness, and Temperature Controller (sold separately) Powered by Gerbing Hybrid Battery Packs G1219U-Bat-859-001-00002 (sold separately) Battery Harness, Y-Harness & temperature controller required for stand-alone operation (sold separately) Max Heat: 135 F 12W Each Power: 12V DC 1.0 Amp Each Note: Gerbing recommends the use of a temperature controller with this product. Failure to do so may cause discomfort and burns.