Our original "salt and pepper" line, TUF-LINEA(R) is manufactured with SpectraA(R) fibers and has an amazing 4% stretch which translates into super sensitivity and more powerful hooksets when compared to monofilament. TUF-LINEA(R) is also hydrophobic, meaning it repels water and won&';t swell in diameter. TUF-LINEA(R) is over 40% smaller than equivalent test monofilaments, which substantially reduces line drag. Featuring a unique bi-component construction that combines the ultimate knot strength with the highest abrasion resistance creating The Ultimate Fishing line, which is how TUF-LINE got its name.