A garment 1 is made from fabric 2 which contains a ceramic material 3 which when heated by the wearers body heat emits far infrared radiation which is radiated back into the wearers body. The ceramic may be woven into the fabric and may contain germanium alloy. A series of pockets 5 may be located adjacent to the wearers joints may contain battery 4 powered transducers 6 producing electromagnetic radiation. The transducers may be a coil around a ferrous coil. The garment may be shaped and size for use by a range of different mammals. The garment is intended to promote blood flow and to relieve ailments such as arthritis.