Oasis GPX Carbon Nylon Classical Guitar Strings GX-1000H High Tension

Unlike most classical guitar strings, GPX strings are made from fluorocarbon monofilament (polyvinylidene fluoride/PVDF). Most classical guitar strings are made from nylon. PVDF has 80% greater density than nylon, so the strings can be made much thinner than nylon and still maintain similar tension to nylon.