The heat belt provides with 12 h of heat for a pleasant relaxation in everyday life. The four large thermal cells provide sustained deep heat.Thanks to the thin material, the heat belt can be worn inconspicuously and comfortably under the clothes. Stretch and a reliable hook-and-loop fastener make the heat deflection adjustable for all sizes (S-XL). The heat belt is comfortable, discreet and odorless. The back warmer is particularly popular with rescue services, stadium visitors, winter sports, working in the open air, in the cold store, hunting, forestry, fishing, tents and many other applications.Thermopad consists of a mixture of natural substances.This mixture consists of iron powder, salt, activated carbon, water and clay mineral (vermiculite).The substances are mixed carefully and in the correct ratio, so that a granulate is produced which has the ability to react with oxygen.A soft fleece that allows oxygen to enter, but does not allow the powder to escape, makes the warmer to w