or 
Compared to Nylon, the New Nylgut produces a better sound and stays in tune better, this is because the moisture absorption is less of .1% against the 2.0% of nylon normally employed for the musical strings.
Due to the higher density, similar to that of pure gut , the New Nylgut produces a better sound than nylon and it is not so metallic like those of the so- called ‘Carbon’ (Fluorocarbon) PVDF strings.
In other words, the New Nylgut is probably the first genuine synthetic gut in the world
