The TOP CROLL S integrates a CROLL S ventral rope clamp to transform ASTRO SIT FAST, AVAO SIT and AVAO SIT FAST harnesses into fall arrest harnesses. The textile sternal attachment point allows optimal weight and bulk reduction. The foam shoulder straps are widely spaced to reduce neck chafing. When the waistbelt is loaded, they help distribute the load over the shoulders The rear connection, on each side of the waistbelt, offers excellent stability.