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Flex 21


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Flex 21 is a high performance string with excellent durabilty, used by club county and international players alike. One of the best selling strings in the range

Our Flex 21 Badmonton string is 0.75mm in diameter for optimum durability. A multifilament core with MAX orinitation of filaments increases string life and insures superior response and power.


  • Gauge: 0.75mm
  • Colour: White


The Ashaway Flex 21’s unique string construction provides a string with less thickness than standard products. The advantages of this thinner string include a faster and harder hit due to a lower wind resistance. Microfilament construction provides greater resiliency with no loss of strength and allows stringing at tournament-level tensions.

The string is recommended and used by professional players as well as amateurs.

Tension will be applied to strings based on our experience.
If you require a specific tension please add required tension (lbs) in the Order Notes box in Checkout

Tension Range – Badminton 15lbs to 30lbs