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