No tangle design creates a frame that allows the harness to fall into place when donned. Stand up back D-ring with impact indicator is a spring-loaded design that automatically stands-up ensuring fast, easy and safe connections to your fall arrest system. Shoulder D-rings. Easy to use tongue and grommet style leg straps for fast adjustments. Repel™ webbing repeals water to reduce attraction of mold and dirt – also has more abrasion resistance.