Mixed thermal belt that helps prevent and relieve low back pain, based on thermotherapy or heat pain treatment, which generates a feeling of relaxation and well-being while causing a flow of blood in the heated area. It helps to protect the lumbar-abdominal area from the cold and helps to relieve pain. Indicated for use in activities in the cold or humidity, pain in the area, arthrosis or for the recovery phase. There are different sizes and heights that allow to adapt to the body easily as well as different color options.