A roping harness having a sit harness, pair of shoulder straps, and at least one securing link having a first strap unfurlable in the lengthwise direction, and composed of two superposed strands secured to one another by a stitching area, designed to tear when a fall happens separating the strands and moving the connecting loop from a lowered to a raised position. The securing link includes a second strap connecting the sternal attachment to the corresponding sit harness strap. The first strap bottom strand is attached to the belt and is shorter length than the unfurlable top strand. The top strand is fixed to the sternal attachment, such that tearing of the stitching area releases the bottom strand. The top strand moves to the raised position attached to the sternal attachment to transfer the reaction of the shock of a fall onto the second strap connected with the leg loops.