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Catalyst Sports Bra
24 Hrs Only ⏰
Catalyst Sports Bra
$63.75
CAD
$85.00
25% off
Our most supportive sports bra
Eliminates bounce by 76%
Ventilation for increased airflow
Full coverage design
Size and Fit Guide
Use Our Calculator to Find Your Traditional Bra Size
Step 12 of 2
Your Results
Measure Your Under Bust
Measure Your Full Bust
Wearing an unpadded bra, wrap a measuring tape around the top of your ribcage. You’re looking for a snug fit - so we recommend tightening on the exhale and noting the smallest measurement to the decimal.
Wrap the measuring tape around the fullest part of your chest, making sure the measuring tape is paralell to the floor. Relax your shoulders and measure where it falls.
At Knix, your size is
Still have questions? Ask our virtual assistant about finding the perfect fit.
Still have questions? Book a virutal fitting with our amazing customer experience team!
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63 Points
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Product Description
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
Zoom
How to Choose?
Essential
- • Days you don’t need leak protection. Everyday freshness and moisture wicking.
-
0 tsp
Heavy
- • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
-
about 8-14 tsp
-
about 1.5-3 regular pads
-
about 4-7 super tampons
-
about 1.5-3 menstrual cups
Light
- • Daily freshness. For sweat, discharge, period spotting, or backup protection.
-
about 1-3 tsp
-
about 1-3 pantyliners
-
about 1-3 regular tampons
-
about 0.5 menstrual cups
Moderate
- • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
-
about 4-8 tsp
-
about 1-1.5 regular pads
-
about 2-4 super tampons
-
about 0.5-3 menstrual cups
Ultra
- • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
-
about 15-20 tsp
-
about 1.5-2.5 super pads
-
about 7-11 super tampons
-
about 2-3 menstrual cups
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Comfortable, wireless support
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Lightly lined cups
Lifts and separates
Revolution Shadow Mesh Bra
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Revolution Scoop Bra
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HIGH IMPACT SPORTS BRA
High Impact Support
Reduces Breast Movement
Tri Flo Ventilation
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Recently Viewed
Total 5 star reviews: 3.8k Total 4 star reviews: 793 Total 3 star reviews: 272 Total 2 star reviews: 176 Total 1 star reviews: 231
90%would recommend these products
5,268 reviews
- Rated 5 out of 5 stars1 week agoMay be a sport bra, but love this for everyday
I bought this bra on a whim along with another knix bra. As a very top heavy person, this is so worth it. So comfortable, band did not stretch (XXXXL++) out as the other one did and love that it is a large chested person can make this no wire bra packable. Will definitely buy this again and highly recommend. No spillage, comfortable and amazing hold.
Susan E.Verified ReviewerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars1 week agoCatalyst Sports Bra
Love this bra! It fits perfect and is so comfortable! Offers great support. Highly recommend! Bought one a few weeks ago and already ordered two more :)
Vicki S.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars2 weeks agoGreat as usual!
Recently purchased a new catalyst. I've been wearing this sports bra since it first launched and it is a godsend. In the old sizing I used to wear a size 8 and now I'm wearing XXXL+ and the fit is good. Used the knix online measurement guide to find the recommended size.
Laura V.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars2 weeks agoSurprisingly good
A very structured bra that really works. Very supportive. Have only used for sports; have not tried for daily wear.
Gerri A.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars2 weeks agoGreat Sports Bra
It has taken many searches to find the right sports bra. It is comfortable and flattering.
Katherine H.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars3 weeks agoCatalyst Sports Bra
This bra feels smooth, comfortable, barely there, and holds in all the right places. It lift to perfection, and separates. I purchased all the colours. Great bra Knix!!!
Toni T.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars3 weeks agoLove my sports bra!
I wore my new Catalyst Sports bra L++ today on a long flight and it was really comfy. Looking forward to using it this golf season for a seamless look under golfware.
Julia B.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars3 weeks agoBest bra ever
Love this bra!! Excellent support and coverage.
Jacqueline C.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars1 month agoSuper comfortable
Great support and comfort
Susan M.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars1 month agoHappy
My new sports bra is very comfortable and I would recommend it to others.
Rita S.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars1 month agoI love this bra!
It’s comfortable, fits perfectly and has excellent support for large breasts. Thank you Knix!
Corinne K.Verified BuyerReviewingCatalyst Sports Bra - Rated 5 out of 5 stars1 month agoBest Sports Bra!
I love this sports bra! It does everything I need a sports bra to do. It keeps the girls in place, even when sprinting. It’s comfortable and offers a little shape so no uniboob. It also looks good from the back; the straps are in the right place to hide any back fat. The new blue color is beautiful!
Danielle H.Verified BuyerReviewingCatalyst Sports Bra
