Diadem has revamped the Nylon string category with Evolution tennis string. The nylon based polyamide has been extruded as a solid mono-filament for impressive flexibility and durability. The silicon based coating reduces friction and is ideal for hybrids with sharp-shaped or edged polyesters. Tennis elbow sufferers should give Evolution a go in a full bed for a controlled comfortable response. Available in 15L, 16g, and 17g in black, blue, and natural colors.Arm-friendly string | Comfortable feel | Nylon based polyamide; Excellent hybrid string