Seeland Heat jacket

The Seeland Heat Jacket is made from a lined, lightweight fabric and features stretch membranes on the sides and arms for greater freedom of movement. The heat-reflective lining prevents heat loss and enhances the effect of the integrated heat membranes. The collar is lined with soft fleece. Integrated heat membranes are located in areas of the upper body that are particularly sensitive to cold – between the shoulder blades and in the lower back – and can be adjusted to a desired temperature between 30 and 52 °C using the associated smartphone app. Additionally, the membranes can also be set to 38, 46, or 52 °C without a smartphone using the button on the chest. Unlike older heating technologies, the heat membranes are flexible enough that the clothing can still be easily folded. Furthermore, the jacket can be safely washed in the washing machine. The right pocket of the jacket contains a waterproof USB stick, allowing a power bank to be connected if desired or needed. With a 10,000 mAh power bank, the jacket can maintain the highest temperature of 52 °C for about 7 hours at an outside temperature of 0 °C. To save energy, the heat membranes automatically switch to standby mode when the jacket reaches the desired temperature. They then turn back on automatically if the temperature falls 1-2 degrees below the desired level, without the wearer noticing. Thus, the jacket has a temperature-regulating function: it automatically turns off when the body produces a lot of heat during high activity and turns back on when standing still or sitting. The jacket features two side pockets and an inner pocket, and it can be stored in the included waterproof dry bag.