4.5
Rated 4.5 out of 5 stars
6,783 Reviews
Sale

Catalyst Sports Bra

Our highly popular high-impact bra that handles your hardest workouts.
$51.00 CAD
$85.00

40% off

Product image
Siobhan is a 34C/D and wears a Knix size 6+
Siobhan is a 34C/D and wears a Knix size 6+
Siobhan is a 34C/D and wears a Knix size 6+
Performance molded cups separate and support breaks
Adjustable black closure with 5 rows
Reduces overall breast movement by 76%
4.5
Rated 4.5 out of 5 stars
Based on 6,783 reviews
ComfortRated 4.5 on a scale of 1 to 5
SizingRated -0.1 on a scale of minus 2 to 2
SupportRated 4.6 on a scale of 1 to 5
88%would recommend these products
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6,783 reviews
  • Debbie Sue F.
    Verified Reviewer
    23 minutes ago
    Rated 5 out of 5 stars
    Best sports bra ever!

    Please do not tell me you are thinking about discontinuing the catalyst sports bra - i see that the size is very limited. It has taken me years to find the perfect bra. Keeps my girls comfortable from workouts ranging from yoga to running. Looks great on by itself or underneath clothing. It is so comfortable and I can wear it all day in the hot Florida weather. I love that the back does not cross - myself and others who have shoulder or neck injuries can’t handle the pressure of racer back or cross-strap styles. Please keep making this bra! I am a registered nurse and also a flight attendant and find it comfortable to wear at either jobs and does not give the “one boob” look. Great quality!

    ComfortRated 5.0 on a scale of 1 to 5
    SizingRated 0.0 on a scale of minus 2 to 2
    SupportRated 4.0 on a scale of 1 to 5
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  • Joy P.
    Verified Buyer
    15 hours ago
    Rated 5 out of 5 stars
    Great staff & wonderful selection of bras.

    Love the bra, especially the colour. So comfortable yet so supportive.

    ComfortRated 5.0 on a scale of 1 to 5
    SizingRated 0.0 on a scale of minus 2 to 2
    SupportRated 5.0 on a scale of 1 to 5
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  • Aimee F.
    Verified Buyer
    17 hours ago
    Rated 5 out of 5 stars
    Great sports bra

    I need a front close sports bra because I've lost some flexibility in my shoulders, and this is perfect. Zips in the front, firm support, easy to wear. I absolutely love it.

    ComfortRated 5.0 on a scale of 1 to 5
    SizingRated 0.0 on a scale of minus 2 to 2
    SupportRated 5.0 on a scale of 1 to 5
    Was this helpful?
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Training Sets

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Training Sets

Whatever way you choose to move, Knix has the perfect set to support your practice.

Rain or Shine Training Set

Rain or Shine

Your full outfit to go after your goals on any day, in any environment. Includes the Pursuit Training Jacket, Engage Medium Impact Sports Bra and Pursuit Leakproof Training Short in your choice of colors.

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Matchpoint Training Set

Matchpoint

Includes the LeakStrong™ Leakproof Skort and  HiTouch™ Active Contour Tank in your choice of colors.

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Full Focus Training Set

Full Focus

Includes the Engage Medium Impact Sports Bra and HiTouch™ High Rise Legging with Piping in your choice of colors.

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High Impact Training Set

High Impact

Our highly popular high-impact bra and ultimate training pant. Includes a Catalyst Front Zip Sports Bra and a Pursuit Leakproof Training Legging in your choice of colors. 

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