Experience the Knockout Power of D’Addario FlexSteels

With a more flexible core, harmonically-rich all-steel wrap wire, a...

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Experience the Knockout Power of D’Addario FlexSteels

With a more flexible core, harmonically-rich all-steel wrap wire, and optimized core-to-wrap diameters, these strings deliver the revolutionary combination of comfortable feel with a focused, punchy tone. If you're a slap or fingerstyle player, get ready to experience the true potential of a string engineered specifically to your needs.

FlexSteels Pack the Perfect Punch

"Flexibility" is the word, since FlexSteels are not only a high-performance string for the most distinguishing slap-style players, but a refreshing tone and feel option for fingerstyle or pick players as well. There are no limits to what FlexSteels can do for your sound and performance.

Precision Engineering

A harmonic-rich steel alloy with precisely formulated core-to-wrap diameters wound to the most precise specifications delivers this singular tone and feel with unsurpassed consistency and extra-long string life.

The Artists Have Spoken

"They won't go dead! I played them for months! They are great. The tension is perfect!" - Michael Rhodes

You Slap, They Punch

To top it off, FlexSteels are manufactured on the most advanced machinery in the industry, guaranteeing every set will deliver consistent, long-lasting tone and precise intonation, set after set. Experience the softest, yet most punishing punch you'll ever feel with FlexSteels!

A D’Addario Innovation

A monumental breakthrough in bass string technology, FlexSteels deliver the unique combination of flexible feel optimized for slap and finger-style playing coupled with a coveted deep and round tone with just the right amount of punch and bite.


Designed to Fit Your Needs
  • Deep, round sound with just the right amount of punch and bite
  • Flexible feel optimized for finger style and slapping players
  • Available in 4, 5 and 6-string sets in multiple gauges and scale lengths
  • Made in the U.S.A. for the highest quality and performance


  • Deep, round sound with just the right amount of punch and bite
  • Flexible feel optimized for finger style and slapping players
  • Fits long scale basses with a string scale length of up to 38 inches
  • Made in the U.S.A. for the highest quality and performance
  • String Gauges: Wound .045, .065, .080, .100
  • Deep, round sound with just the right amount of punch and bite
  • Flexible feel optimized for finger style and slapping players
  • Fits long scale basses with a string scale length of up to 38 inches
  • Made in the U.S.A. for the highest quality and performance
  • String Gauges: Wound .045, .065, .080, .100