Sweetheart Breastfeeding Sports Bra

$74.99 AUD
Size Guide


  • The easy to use nursing clips that you can manage with one hand.
  • The moisture-wicking, quick-dry antibacterial fabric. It quickly absorbs and disperses any moisture making your crop a lot more comfortable.
  • The wire-free design. Not only does this make the crop super comfortable, but going wire-free has been shown to help reduce mastitis.
  • The removable padding and easy access pocket for breast pad insertion.
  • The comfortable, four-way stretch material. It holds its shape and moves with you. It will last for a long time.
  • The thick elastic band that offers extra support and lift under the bust.
  • The racerback style that gives additional support.


She’s simple, she’s sleek, and she’s super supportive - our customers just can’t get enough of our Sweetheart Breastfeeding Sports Bra! The plain black bra is an activewear staple with its sweetheart neckline design, peek-a-boo mesh detailing, and sturdy racerback. Designed specifically for nursing mothers, the functional nursing clips at the front of the bra make for a smooth transition between gym and breastfeeding.

This firm fitting, racerback sports bra is made for high impact exercise like running and Crossfit, holding you in place and keeping you supported as you work out. Made of a durable polyester (73%) and spandex (27%) blend, the Sweetheart Nursing Sports Bra will hold its shape wear after wear.

Complete your fun, and fearless activewear look with our Full-Length Pregnancy & Postpartum Tights w/Mesh Panel and the Active Mum Revolution Tank.

    Model 1 is wearing Size: M and Model 2: XL

    The crop is available in sizes: XS to XXL.

    Customer Reviews

    Based on 22 reviews
    Needs adjustable straps

    I have large breasts and unfortunately this bra just doesn’t give me enough support to wear it to the gym (CrossFit). I feel that it needs adjustable straps, as my straps already seem to be too stretched/loose to support well. It is quite comfy to wear around the house.

    Good but could be more supportive

    I’m usually a medium, but due to my bust growing during pregnancy I ordered a large. It fits, but I am not one that likes when the straps go inward, not covering the outer part of the chest for fuller coverage. Otherwise good product.

    Breastfeeding sports bra

    Such a good quality and beautiful design. Love wearing it everyday, very comfortable.

    Awesome product

    I am currently breastfeeding my 6th baby, so as you can imagine have spent a small fortune on sports nursing bras. I ordered 2 from Mummactiv and I have to say, these are the BEST ones I have ever used... The support is amazing, no more holding boobies down at our camp... 🙏🏻💖

    Best sports bra that will be used long after breastfeeding.

    This sports bra is made with quality material and is the most comfortable sports bra I have ever owned. I will be wearing it long after I finish breastfeeding (note: I have already been breastfeeding for 1 year) and will be the sports bras I will continue to buy in the future.