Abstract: A thermoelectric device suitable for power generation by the Seebeck effect or heating and cooling by the Peltier effect includes a flexible thermoelectric layer with a flexible heatsink layer. A thermally conductive layer can optionally be included on the side of the thermoelectric layer opposite the flexible heatsink layer. Because of its flexibility and durability, the thermoelectric device can be utilized for products such as a thermoelectric generator or cooling/heating system for consumer products, such as a bedding, clothing, hats, seat cushions, and personal portable devices.