Extreme ice climbs and long alpine routes call for Beal's light and reliable 8. 1mm Ice Line Dry Cover Unicore Half Rope. Its Unicore construction permanently bonds the sheathe to the core for a decreased impact force and increased UIAA falls, compared to most half ropes. Unicore also eliminates the possibility of sheath slippage, resulting in better longevity and reliability. Beal treated the Ice Line with a Dry Cover for less water absorption and enhanced abrasion-resistance.