The Sirio is soft as silk and makes it easy to cast very light floats, but at the same time, it has a very high linear breaking strain, just like its breaking strain at the knot. It can be used both in freshwater and in the sea, thanks to the innovative anti-salinity treatment that extends its lifespan. As with all sea lines, we recommend rinsing the spool of the reel with fresh water at the end of each fishing session.