With more stretch than Tough Trace, it delivers a high level of shock absorption making it ideal for fishing with J or suicide hooks.
It's more supple nature means its easier to tie knots with, even in the heavier weights (thicker diameters).
Its construction, from Japanese copolymers, delivers a high level of abrasion resistance and while its not as clear as Tough Trace, its still achieves a good level of invisibility in most water conditions.