Abstract: A belt for joggers, cyclists and other recreationists, having a forwardly shining light to reveal hazards along the path, along with an insulating, sweat producing liner on the body side of the belt, for maximum sweat production for local loss of fatty tissue. The belt also may be worn, at the option of the wearer, in a folded condition without contact of the body with the insulating material, then no longer serving as a sweat generating device.