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.