One of the few lines that is true to lineweight. If you have a slow action rod, especially glass or cane, this line from Rio is a great choice. Also check out the Scientific Anglers Trout Standard.
RIO’s LightLine has been designed to load slower, more traditional action fly rods such as bamboo, glass and the more “Classic” flexing graphite rods. Built to precisely match the industry line standards, this line will not overload such rods – even at longer range. The weight distribution and short front taper ensures the line loads at close range, making it ideal for fishing on smaller creeks and streams, while the softer, supple coating ensures the line remains relaxed and easy to handle in the majority of conditions.