Fluorocarbon is known for being nearly invisible in water and this 100% fluorocarbon exceeds all expectations in that category. This is not a limp line, no fluorocarbon really is, but it is extremely tough and will hold up well when in contact with rocks, sticks, and other underwater obstructions and the breaking strength is better than other popular brands on the market. The knot strength is also excellent and it will hold well with all the popular knots. That is exactly what we expected from this manufacturer and we got it. If you like fluorocarbon line you'll love this 100% fluorocarbon line, and the price is quite reasonable.