Players will immediately notice the high shock-absorbing qualities of this string. Polyfibre Viper provides amazing touch, control, and precision coupled with maximum power. Polyfibre engineers have applied the newly developed SMD (Standardize Molecular Distribution) technology together with a corona coating to futher enhance the quality of this string. Each Molecule is reformed and realigned into a highly bonded, selectively cross-linked moelcular structure; molecules are well arranged and distributed throughout the entire string body which is specifically designed to outperform competitors in elasticity, repulsive power, and durability. Viper's surface structure provides fantastic spin potential as well as preventing string slippage and the added comfort factor will sustain players through long matches as it is easy on the arm and highly durable. The 17 gauge offers a little more pop and spin.

ATP World Tour Player Mario Ancic uses Polyfibre Viper.

• Length: 40 ft/12m
• Gauge: 17/1.25mm
• Color: Silver
• Construction: Extruded Co-Polyester
• Advantage: Very soft and arm friendly