The standard riser is made from black 12 mm Kevlar-reinforced webbing. The LHOTSE X is designed for enthusiastic hike & fly pilots as well as ambitious cross-country pilots who enjoy flying a very light wing. They benefit from the C-control system with deflection pulleys on the B-level, which reduce the control forces. The lightweight riser does not have this pulley suspension for weight reasons, so it should only be used by pilots who prioritize maximum weight reduction.