THE SUPERLINE THAT HAS IT ALL The only superline featuring GlideCoat™ technology, which produces a fast casting, super smooth, quiet and wear resistant braided line. GlideCoat treatment also holds color better than other superlines. Stren Sonic Braid is made with the highest strength Dyneema® polyethylene (PE) fiber construction - stronger than steel. The round, full-bodied construction resists wind-knots and other handling problems found in ordinary braids. With unmatched knot strength for dependability.