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Brassière de sport Catalyst

$85.00 CAD

Achetez 2 soutiens-gorge et obtenez 10 % de réduction

Notre brassière de sport la plus enveloppante

Réduit les rebonds de 76 %

Aération pour une meilleure circulation de l'air

Couvrance totale

Front view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette

Adiya is a 36C and wearing KNIX L

View of Catalyst Sports Bra shown front-facing against a light gray background
Back view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette

Adiya is a 36C and wearing KNIX L

View of Catalyst Sports Bra interior ventilation for increased airflow
Full-body view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette

Adiya is a 36C and wearing KNIX L

Back view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette

Adiya is a 36C and wearing KNIX L

Size Chart Conversion from Original Sizing

Adiya is a 36C and wearing KNIX L

Color: White

Size:

Taille conforme

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Size:

Size and Fit Guide

Build Your Bundle

Front view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette

Brassière de sport Catalyst

Color: White

Size:

Size:

Front view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette

Brassière de sport Catalyst

Color: White

Size:

Size:

Livraison gratuite pour les commandes de 100 $ et plus

Shipping

Shipping

Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.

Delivery Time

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges

Orders over $125* CAD = Free Shipping (2-6 business days)

Orders under $125* CAD = $12 CAD Shipping (1-3 business days)

Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.

*After discounts, before shipping and taxes.

Retours faciles sous 30 jours

Bras & Bra Accessories

Returns & Exchanges

Holiday Return Policy
Eligible items purchased online or in stores between November 2, 2026 and December 31, 2026 may be returned through January 29, 2027. All other purchases fall under our 30 day Returns Policy.

Standard Return Policy
Finding the perfect bra fit takes time. We're here to make it easier. Bras and bra accessories are eligible for return or exchange within 30 days of delivery. Feel free to remove tags and wash and wear to find your fit before deciding.

Please note: NOOD products must be returned brand new in original packaging within 30 days of delivery.

Still have questions? View our full policy here.

Rewards Members Earn 85 Points

"C'est le seul soutien-gorge de sport pour fortes poitrines que j'ai essayé qui limite les rebonds au minimum quand je cours."

- SELF Magazine

Product Description

You’re in control of your performance in our most supportive sports bra ever. Made with encapsulated cups for maximum support and a locked-in feel, this bra reduces overall breast movement. Ventilation in the front helps you stay cool throughout your workout. And the traditional adjustable hook-and-eye back closure with five rows lets you easily find the perfect fit.

High Impact Support

You are in control of your performance with our most supportive, full-coverage sports bra.

Feels Made For You

The traditional adjustable hook and eye back closure, featuring five rows, allows you to find the perfect fit easily.

Functional Style

The breathable, moisture-wicking fabric and ventilation in the front help you stay cool throughout your workout. Made with encapsulated cups for maximum support and a locked-in feel, this bra reduces overall breast movement by 76%*.

*During treadmill running; based on the University of Portsmouth Research Group in Breast Health study, 2018.

Zoom

Adiya is a 36C and wearing KNIX L | Front view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette | White
Adiya is a 36C and wearing KNIX L | Back view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette | White
Adiya is a 36C and wearing KNIX L | Full-body view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette | White
Adiya is a 36C and wearing KNIX L | Back view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette | White

Tableau comparatif

BRASSIÈRE DE SPORT À FORT MAINTIEN

Améliorez vos performances. Conçu pour le mouvement.

Les bonnets encapsulés offrent un maintien optimal pour une sensation de maintien qui réduit le mouvement global de la poitrine de 76 %*.

High Impact Support

Combines breast encapsulation and compression for maximum impact support.

4.5
Rated 4.5 out of 5 stars
Based on 5,361 reviews
Reviews Summary
Customers say this sports bra provides excellent support and comfort, especially for larger bust sizes. Many appreciate the wide shoulder straps and wire-free design that keeps everything secure during workouts and all-day wear. Users frequently mention the breathable, soft material and adjustable fit. However, several note sizing challenges with the newer version, finding it runs smaller than expected and requiring sizing up. Common concerns include straps that may slip or loosen throughout the day, and some experience gaps around the armpit area. While many praise its durability and long-lasting support, a few mention quality issues with adhesive coming apart over time. The bra receives mixed feedback on the recent design changes, with some preferring the previous version's fit and strap system.
90%would recommend these products
ComfortRated 4.5 on a scale of 1 to 5
FitRated -0.4 on a scale of minus 2 to 2
SupportRated 4.6 on a scale of 1 to 5
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5,361 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    Very comfortable and perfect fit

    Good support

    GG
    gisele g.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Black / L+
  • Rated 5 out of 5 stars
    Yesterday
    Great sports bra!

    This is my second Catalyst Sports Bra and I love it as much as the first. I'm larger-breasted and this bra keeps everything in place (my workout is medium-impact). It's supportive and comfortable- no rubbing or chafing. I had to exchange one size for another and their return/exchange policy was incredibly easy and customer-friendly. Would definitely recommend, and will certainly buy from knix again.

    RC
    Rachael C.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Black / M+
  • Rated 5 out of 5 stars
    Yesterday
    Catalyst

    Awesome running bra, very supportive.

    MH
    Melissa H.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Black / M
  • Rated 5 out of 5 stars
    2 days ago
    Very comfortable; great support

    It took a bit to get this bra adjusted correctly, but now that it is, I am loving it. I really appreciate the adjustable straps and band which allow for a better, more supportive fit without making the bra feel uncomfortable. The fabric is soft and the bra breaths nicely during moderate workouts.

    LH
    Lindsey H.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra
  • Rated 5 out of 5 stars
    1 week ago
    Very Comfortable

    As someone who had always worn an underwater bra, it is amazing to find a bra with this much support and comfort.

    KC
    Kim C.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra
  • Rated 5 out of 5 stars
    1 week ago
    Catalyst sports bra

    Comfortable, supportive, smooth, soft material

    DB
    Donna B. B.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Warm Sand / XL
  • Rated 5 out of 5 stars
    2 weeks ago
    True to size

    For larger bust it is hard to find a supportive bra that doesn't have a wire. This was a tight fit, but fit better after a few wears. Good support and has better separation than most sports bras.

    RB
    Ruth B.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Warm Sand / XL++
  • Rated 5 out of 5 stars
    3 weeks ago
    My go to bra

    This bra provides firm support and the adjustable straps and closure allow for a perfect fit.

    MB
    MaryLou B.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Pink Party / XL+
  • Rated 5 out of 5 stars
    3 weeks ago
    Perfect for work!

    As a Nurse, I want really good support without being restrictive. This is the perfect combination. I can wear it for my 12 hr shifts (even when they turn into 14 hrs or more) comfortably. No red marks on my shoulders, and no uniboob. Thanks 😊

    KH Profile picture for Kimberley H.
    Kimberley H.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Black / XXXL+
  • Rated 5 out of 5 stars
    3 weeks ago
    Full support!

    Easy to put on and adjust. Not digging in anywhere especially in the sides. Can do jump squats and jumping jacks without worrying. Bench presses and deadlifts are executed a little easier as there is no side spillage or bulges. Ended up buying 4 bras. So worth it!

    RJ
    Roxanna J.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Black / XXL+
  • Rated 5 out of 5 stars
    3 weeks ago
    Best Sports Bra Ever

    Believe me when I tell you, you will not regret this purchase! It is the most supportive and comfortable sports bra I have ever worn. I have thrown out all other brands. Knix is all I will ever wear!

    JH
    Jessica H.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra
  • Rated 5 out of 5 stars
    3 weeks ago
    Super comfy

    It fit exactly to size. Comfortable and very supportive. I can work out without bouncing everywhere like in other sports bras! And the no wire is an added bonus.

    AM
    Alisabeth M.
    Verified Buyer
    Reviewing
    Catalyst Sports Bra Warm Sand / XXXL+

Your sports bra questions, answered.