Spiderwire Ultracast Ultimate Braid is one of the smoothest casting braided lines ever created. Ultracast is made through a cold-fusion process that winds this 8 carrier braid in to the perfect roundness for high strength and durability while remaining extremely quiet through the guides. Only the most advanced technology and materials went in to the design of Ultracast Ultimate Braid, making it the flagship for Spiderwire Braid's. Guaranteed to outcast, outlast, and outperform any other braid! Tie on some spiderwire today and you won't be disappointed!