With its shaped profile and slick surface, this co-polyester monofilament offers exceptional spin potential. Although slightly softer than a traditional polyester, RPM Blast is by no means the softest co-poly available. It is an ideal choice for big hitters with heavier racquets seeking maximum control, durability, and spin. (And it seems to be working quite well for Rafa!)

• Gauge: 15L/1.35 mm
• Length: 660ft/200m
• Composition: Co-polyester Monofilament
• Colour: Black