The 
The heating elements are powered by a Bluetooth controlled battery (not included). The 
ACTIVE HEAT: 6 heating areas evenly distributed between the back and chest provide a homogeneous and pleasant heat. The heat function is activated by simply connecting an external USB battery (not included) to the cable in your jacket pocket.
INTEGRATED BLUETOOTH: The desired heat intensity can also be set via Bluetooth using your smartphone. Simply connect the included 
WARMING AND BREATHABLE: The jacket features a 
      Material    
    
    Outer material: 100% polyamide
Collar: 100% polyamide
Side panels: 89% polyamide, 11% elastane
Isolation: 100% polyester
 
| Product name: | therm-ic Powerjacket Speed Heatable Jacket - red | 
| Manufacturer: | therm-ic | 
| Item code: | TIC548185 | 
| Material: | Outer material: 100% polyamideCollar: 100% polyamideSide panels: 89% polyamide, 11% elastaneIsolation: 100% polyester | 
| Compression: | no | 
| Activity: | Outdoor, Winter Sports | 
| Gender: | men | 
| Usage bikesport: | Winter | 
| Textile fabric: | Synthetics | 
| Season: | Winter | 
| Insulation: | Synthetics | 
| Features: | Windproof, Membrane | 
| Fit: | semi-fit | 
| Jacket / vest version: | Jacket | 
| Model year: | 2021 | 
| Collection: | Autumn/Winter | 
| Color: | Red | 
| Weight: | 520g | 
| Manufacturer page: | http://www.therm-ic.com/ |