2023 DeMarini Whisper Fastpitch (-10) Softball Bat


Series: Whisper

Certification Stamps: ASA, USSSA, ISA, ISF, NSA

Handle Type: Composite

Barrel Type: Composite

Drop: -10

Drive the ball for extra bases and silence the opposition with one swing. The 2023 DeMarini Whisper (-10) Fastpitch Softball Bat boasts an original Amplified Gapped Wall Continuous Fiber Barrel, one of the most advanced technologies to ever come out of DeMarini’s Oregon factory. Extra space between inner and outer walls empowers the Whisper’s continuous fiber composite barrel to jumpstart the ball on contact, resulting in potent exit velocities and extra base hits. Whisper employs a two-piece composite construction to maximize your power output, and its Anomaly Connection System and trumpet-shaped handle offer a stiff feel while dampening vibration. Ideal for advanced hitters looking to launch extra-base hits, the 2023 DeMarini Whisper Fastpitch (-10) softball bat delivers a balanced feel, brighter sound and dominant performance.

  • Drop 10 (Length – Weight)
  • Gapped Wall Composite Barrel
  • Composite Handle
  • Anomaly End Cap
  • Anomaly Connection
  • Balanced Swing Weight
  • Certified for play in ASA, USSSA, ISA, NSA, ISF
  • One Year Manufacturer’s Warranty
Weight 3 lbs
Dimensions 34 × 3 × 3 in



30 Inch/20 oz., 31 Inch/21 oz., 32 Inch/22 oz., 33 Inch/23 oz., 34 Inch/24 oz.

Bat Certifications

USA/ASA Fastpitch, USSSA Fastpitch


(-10) Fastpitch



DeMarini Bats for Sale at Bats Plus.
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