The Dunlop SX 300 (2025) is a 300-gram spin-oriented tennis racket featuring a 100 square-inch head size.

Key Specifications

• Head Size: 100 sq. in. / 645 cm²
• Unstrung Weight: 300 g / 10.6 oz
• Strung Weight: ~318 g / 11.2 oz
• Length: 27 in. / 68.5 cm
• Balance: 320 mm / 7 pts HL (unstrung)
• String Pattern: 16x19
• Beam Width: 23mm / 26mm / 23mm

Key Technologies

• Spin Boost XT Grommets: Enlarged grommet holes that allow increased string movement for higher spin generation
• Vibroshield: A dampening material integrated into the shaft and hoop to reduce harsh vibrations
• Sonic Core with Infinergy: Material embedded in the frame to boost energy return and comfort
• Spin Boost Frame Geometry: An outer frame shape designed to enhance stability and speed through the air