Abstract: An improved support belt for radiation shield garments has a padded, slip-resistant rear support element, one or more elasticized elements, one or more connecting elements, and adjustable fastening means for securing the ends of the belt to one another. The padded, slip-resistant rear support element comprises a relatively thin, flexible foam core that is covered with a foam-backed vinyl, the foam facing outwardly for frictionally engaging and supporting the radiation shield garment at the waist of a user.