Cool and dry in Summer.Cool Function is ventilation and moisture management for your body.Providing optimum comfort and driving. Special Ventilation layer and Cooling layer battles the heat with breathable quick dry 3D Mesh,so you are always cool and dry. Warm in Winter.Dual zone rapid heating,with soothing heat therapy on the back and seat bring warm feeling in the winter.Equipped with Overheat Protection Device remains the stable temperature. Special two layers design.Ventilation layer and Cooling layer.Special design solves the problem that vents blocked by human body compared to the normal cooling cushion to effectively eliminate hot sticky seats. 3D breathable mesh Revolutionary new concept 3D Spacer fabric,its upper and lower side are meshes,and the middle is the unique X90 structure made of polyester,giving it the outstanding support force,ventilation functions. Universal fit,Special design not only for 12 Voltage car but also for 24 Voltage Truck,Boat,Bus.Car and Home adapter are included,Portable for home,office use too.