Sirius is one of the most successful allround ropes of Robline. Due to the optimum characteristics of the polyester double weave it features low stretch while ensuring high stability.
Specifications:
| Diameter [mm] | Weight [g/m] | BL [daN] | 
| 4 | 12 | 550 | 
| 5 | 20 | 850 | 
| 6 | 27 | 1150 | 
| 8 | 49 | 1800 | 
| 10 | 71 | 2800 | 
| 12 | 103 | 3800 | 
| 14 | 140 | 5000 | 
| 16 | 185 | 7300 |