Catalyst Sports Bra

Questions & Answers

30-Day Guarantee

Wear it. Wash it. Love it. All of our bras are covered by a 30-day money-back guarantee. If you're not in love, we'll take it back, no questions asked.

30 Day Return or Exchange Guarantee

Catalyst Sports Bra Essentials

We put it to the test. And it's the best sports bra that's ever been tested.
The Most Support
The Catayst reduces breast movement by 76%. More than any other high support sports bra on the market.
Stay cool and dry with Tri-Flo™ ventilation between the breasts - where you sweat the most.
Easy On/Off
Never get stuck in your sports bra again: The Catalyst is as easy to get off as waving your hand.
"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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