horse pilot mens sleeveless puffer jacket e kelvin navyThe E Kelvin sleeveless jacket is crafted from a lightweight, ripstop fabric for enhanced abrasion resistance Featuring a self heating technology integrated into the lining and connected to a rechargeable external battery, this carbon nanotube textile panel delivers warmth tailored to the rider's needs The technology is activated via a button on the side of the jacket. Temperature can be adjusted using the button or through the "iwarm3" app, available