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Home / Bras / Momenta Racerback Sports Bra

Momenta Racerback Sports Bra

$65.00 USD

10% off Bra & Underwear Sets*
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Medium support sports bra

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Works as a workout top

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Cool mesh ventilation

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Hardware-free design

Cassaerea is a 34G and wears a Knix size M++| Black

Cassaerea is a 34G and wears a Knix size M++

| Black
Cassaerea is a 34G and wears a Knix size M++| Black

Cassaerea is a 34G and wears a Knix size M++

Cassaerea is a 34G and wears a Knix size M++| Black

Cassaerea is a 34G and wears a Knix size M++

Cassaerea is a 34G and wears a Knix size M++

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Free Shipping on orders $100+

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. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.
Easy Returns within 30 Days

Returns

Returns

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.
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"...keeps her cooler and drier than other sports bras"

- NBC News

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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Cassaerea is a 34G and wears a Knix size M++| Black
| Black
Cassaerea is a 34G and wears a Knix size M++| Black
Cassaerea is a 34G and wears a Knix size M++| Black

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups

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4.4
Rated 4.4 out of 5 stars
Based on 756 reviews
Total 5 star reviews: 516 Total 4 star reviews: 120 Total 3 star reviews: 51 Total 2 star reviews: 25 Total 1 star reviews: 44
86%would recommend this product
ComfortRated 4.4 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
SupportRated 4.1 on a scale of 1 to 5
Write a Review (Opens in a new window)
756 reviews
  • Rated 2 out of 5 stars
    4 minutes ago
    Nice bra

    Nice sports tank bra but the fit was a little odd for me so I returned it. Loved the color.

    Karen P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Perfect for workouts

    The fit is amazing. Everything stays in place while exercising.

    Donna T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Finally found a bra that's supportive that I like!!

    I don't like bras and don't like how my bust looks under clothing -- other sports bras either don't provide enough modesty coverage or are unsupportive. This bra is so comfortable I can even sleep in it without feeling constricted or sufficated. Lots of support AND it's (slightly) reductive in appearance! Definitely will buy again every time there's a sale! Love the colors too!

    ninjaamber
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    2 weeks ago
    Nope

    The band is not tight enough. When stretching I fall out of the bottom.

    Catherine L.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    2 weeks ago
    Do not trust the size converter on the website

    The bra itself seems good quality. However, I used the size converter on the website and it is so horribly incorrect. I used the measurements from my everyday bra (32 DD) and the converter said I'd be a XS+. I should have been a M if not L. The bra would maybe fit a small child but definitely not a grown woman. Use your judgement and do not trust the website sizing!!

    Gina W.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    3 weeks ago
    Racerback comfortable except for straps digging into neck.

    Comfortable except when straps on back press on base of neck. The initial size ordered was too small and had to send it back. Return process is very user friendly.

    Jodi P.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    3 weeks ago
    Would have returned

    This did not work for me and I would have returned it, but got it on sale and it's not eligible. It's VERY tight and difficult to get on - even though the cup sizing is right for me - and it really flattens me out. I thought it would be more long-line but it's not made for longer bodies - the band basically cuts off my boobs! The fabric and colour are nice though and it would provide good support.

    Liz
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    3 weeks ago
    It's good.

    Their sports bras are soooo comfortable. This one isn't my favourite, but I still really like it.

    Meagan P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Love this bra. With cups in fits great but a little loose around chest. This makes it super comfortable.

    Jani
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Love this bra. This is one size small for me but without the pafs fits great.

    Jani
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Perfect

    Great support and comfortable to wear while running and exercising. I love the coverage on this and it looks great too.

    Susan K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 weeks ago
    Excellent

    It’s a very comfortable bra especially for walking and hiking

    Jennifer O.
    Verified Buyer
    Was this helpful?