Berkley Trilene Transoptic Monofilament is the first and only nylon monofilament to physically change color! Trilene Transoptic changes to bright gold in sunlight so you can see the line and see more strikes! Trilene Transoptic changes back to clear under water so fish don't see it!
World's only color-changing nylon monofilament
Changes from clear to gold in sunlight - Hi-vis above, clear below
Excellent shock strength - holds strong under hard hooksets
Manageable - outstanding for a wide variety of baits and techniques
did not expect to have a line like this, but it works just like it says on the box. turns to a gold colour when out of the water, so its easier to see, in water its supposed to be invinsible. which i beleive as its gotten me loads more fish.