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Momenta Racerback Sports Bra
Medium Support
Momenta Racerback Sports Bra
$65.00
USD
10% off Bra & Underwear Sets*
Medium support sports bra
Works as a workout top
Cool mesh ventilation
Hardware-free 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? Reach out to info@knix.com to learn more about our sizing.
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Product Description
Medium Impact Support
This smooth racerback style provides medium support, featuring sewn-in padding and stretchy fabric for comfort and security.
Feels Made For You
The racerback style pulls over your head easily and features zero hardware. The seamless, stretchy knit fabric feels like a second skin.
Functional Style
Suitable for various activities and workouts. Underband mesh provides ventilation.
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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
Sports Bras Comparison Chart
Catalyst Sports Bra
Maximum support
Full coverage
Reduces bounce by 76%
Momenta Racerback Sports Bra
Medium support
Mesh underband for ventilation
Pullover style
Longevity Sports Bra
Light support
Bra top with bonded-in cups
Pullover style
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Recently Viewed
Total 5 star reviews: 535 Total 4 star reviews: 122 Total 3 star reviews: 51 Total 2 star reviews: 27 Total 1 star reviews: 47
What our customers are saying
Generated by AI from 100 most recent customer reviews
Last updated 2 weeks ago
Customers say this sports bra offers excellent support and comfort for various activities from yoga to running. Many reviews mention its soft, breathable fabric and sewn-in cups that stay in place. Users appreciate the secure fit that keeps everything in place during workouts without feeling restrictive. Common feedback includes praise for the racerback design and coverage. However, some note sizing challenges, with several mentioning the bra runs small or is difficult to put on initially. A few customers report durability concerns, particularly with the band stretching out over time. While most find the fit supportive for larger busts, some experience issues with the underband folding or rolling up during movement.
86%would recommend this product
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Current Band Size
Current Cup Size
Purchased Knix Size - Letter Sizing
782 reviews
- Rated 5 out of 5 stars1 week agoSports bra
Good support
Pauline F.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 2 out of 5 stars2 weeks agoLost its shape quickly
I loved this item at first but I've had it for less than a year and it's stretched out and lost its form. It's most noticeable in the neckline, where it sticks out at the bottom of the U-shape now, and in the band, where it's super loose.
Madison P.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars2 weeks agoIdeal Bra
I got this bra for my special needs daughter. It’s ideal since there are no hooks or zippers & it goes up higher on her chest than many other bras. There are many size options too. Maybe a few more colors like pink & purple! Great bra!!!
Linda C.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 4 out of 5 stars2 weeks agoSports bra
Nice fit. Works well.
Pat B.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars3 weeks agoSports Bra
I've been wearing Knix bras for years and this was my first sports bra. I love it! It felts snug but holds everything in place which is what I need with a larger bust. My new go-to!
Kristen P.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars4 weeks agoCustomer Service
I ordered two Momenta Racerback sports bras. One of them had a band that was larger than the other even though I had ordered them in the same size. I requested an exchange and my request was promptly answered. I received the replacement bra, which was the perfect size, in a couple of days. I'm very impressed with this company's customer service.
Susan S.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars1 month agoLove it!
Super conmfy and easy to wear in the give especially as a bigger chested gal
Neha S.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars1 month agoSports Bra
Love it and fits great!
Laural R.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars1 month agoMomenta Racerback Sports Bra
Was so happy with one. Had to buy 2 more!! Keeps the girls tucked in and have full support.
I needed a bra without any back clasps and looks great with a light t-shirt over top
Would highly recommend.
Karen D.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars1 month agoPerfect fit for bigger bust
I have a hard time finding sports bra that suits well. The possibility to take the size + is great for that. I go to the gym and do mostly lifting and it’s perfect for that and very comfortable. I would pick another bra for cardio for more support tho.
Geneviève G.Verified BuyerReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars1 month ago5 Stars
Perfect fit. I wear 38F, 205 lbs.
alyssa.sabraeReviewingMomenta Racerback Sports Bra - Rated 5 out of 5 stars2 months agoRacerback Sports Bra
Great fit
Bra cups dislodge when washing and are difficult to put back in place
SUSAN P.Verified BuyerReviewingMomenta Racerback Sports Bra
