Hard Top is a brand new Fluorocarbon from Varivas. It is a 100% Fluorocarbon with a special Super Tough coating. This coating uses a specialist resin film which both gives the line added strength and also prevents potential weakening of the line by suppressing water absorption.
It is a low stretch line and this combined with the parallel spooling means you have a very smooth line for using as traces or leaders.
Handy pocket sized leader spool supplied in hard case.