Activated by UV light, changing from clear to gold
Hi-Vis above the water and clear below
Excellent shock strength and abrasion-resistance
All-around tough and dependable line
Berkley Trilene TransOptic Monofilament Line is the first and only nylon monofilament fishing line to physically change color. Berkley's proprietary technology in the TransOptic Line is activated by UV light, changing from clear to gold in sunlight. This allows the line to be Hi-Vis above the water and clear below, meaning you can see the line, but the fish can't. Easily manageable for a wide variety of baits and techniques, TransOptic's co-polymer formula provides excellent shock and knot strength, as well as optimum abrasion-resistance for an all-around tough and dependable line.