A small punching bag used by boxers for practicing quick punches.
- ‘The speed bag builds killer hand-eye coordination, but it's also one of the more challenging exercises in the gym.’
- ‘She quickly glanced up to her right and spotted Josh looking at them for a moment before he went back to the speed bags.’
- ‘Boxers in training spend a lot of time hitting the speed bag and jumping rope.’
- ‘Practice the jab on the heavy bag, focus pads, shadow boxing, double end bag and for advanced boxer's the speed bag.’
- ‘Hitting a speed bag correctly takes time and practice but pays off in sharper timing and reflexes.’