Izorline First String Mono 1lb Spool
The choice of many top Tuna Captains. The Co-Polymer line offer exceptional abrashion resistence, low stretch, low memory, and knot strength. Izorline mono tests well above the rating specs. This line has been fished the world round and what I like about it personally is its strength and abrasion resistance. You can count on this line, its not going to just break off on you.