When it comes to worker safety, there are no second chances. Fortunately FallTech takes safety very seriously. This FallTech Suspension Trauma Relief System (5040) is designed to be installed on an existing full body harness to provide relief from suspension trauma until rescue can be implemented. The hip packs have two webbing pockets which are marked as the left side and right side. Each pocket includes an attachment loop for securing to your harness. These hip packs also feature an inner snapped strap with a yellow pull tab and a red thumb grab ring.