Catalyst Sports Bra

Questions & Answers

Our 30 Day Guarantee

Put it to the test. Wear it to work, to yoga, to wherever - it’s your call. Give it a couple washes. Fall in love with it. And if you don't? We can help you get into a better fit or take it back, no questions asked.

30 Day Return or Exchange Guarantee

"It is so lightweight and supportive even on my longest runs!"

– Sherica H.

Read More Reviews
As a PE teacher, long distance runner and a DD, the Catalyst has been the BEST sports bra I own.
- Karin L

What You're Wearing


Constructed using 4-way stretch fabrics, your Knix match your every move and mold to your unique shape. It's comfort unlike anything.


Knix products are tested by 1000s of women to ensure they're ready for real life. And everything that comes with it.


Moisture-wicking. Anti-odor. Quick dry. And anything else we can do to improve your intimates.

Catalyst Sports Bra Reviews

Catalyst Sports Bra
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