We earn a commission for products purchased through some links in this article. Why Trust Us?
Health - Injuries
Banish back pain and bounce with these 8 sports bras that provide support for larger-breasted runners without suffocating compression
Minimal cross-straps still provide plenty of structure sports bra are as extreme as the discomfort of a poor-fitting one. The right sports bra provides support, structure, and you can almost forget you’re wearing it. The wrong one can cause chafing, bouncing, and back pain. Large-breasted runners have even more to think about thanks to potential neck / back strain and increasing bouncing.
When you’re shopping for a sports bra—especially with larger cup sizes—the goal is to find a supportive model that moves with you, but minimally enough that it doesn’t rub or create friction. Finally, you want to make sure it doesn’t feel suffocating through the band or have any pinch points.
Dr. Owen Legaspi is a XS-3XL included combined band / cup sizing based in New Jersey, and we checked in about the specificities of shopping for a sports bra for larger cup sizes. When it comes to the importance of a supportive bra, Legaspi says: “Large-breasted women are predisposed to having rounded shoulders and an increase in kyphosis, a forward-leaning posture.”
He explains that this affects the lumbar curvature, which can be a cause of low back pain, especially for runners.
This makes a supportive, well-fitted sports bra even more important. Overall, we recommend looking for a sports bra with comfortable, durable fabric, wide straps to avoid digging into skin, a cross-back design for added support, molded cups, and wicking properties.
Best Running Bras for Large Breasts
- Best All-Around: Brooks Dare Crossback 2.0 Bra
- Most Effective Compression-Style Sports Bra: Whats the Cost of Being a Runner
- Most Adjustable: Adidas TLRD Impact Training High-Support Bra
- Most Versatile: Health & Injuries
- Health & Injuries: lululemon Run Times Bra (High Support)
The Expert: I am an avid trail runner, cyclist, climber, and hiker with a decade of outdoor-industry writing and field testing experience. I wear a 36D bra, and I’ve had to figure out (through trial and error) the best bra for activities with varying degrees of impact. I wear a different sports bra for most activities and understand the difference in support needed for cycling versus running versus multi-day trips. I also wear sports bras daily, as I find them more comfortable than regular bras. The sports bras I’ve tested and chosen have a range of support and styles for different activity levels and body types.
Lifestyle and fitness writer Stacey Freeman contributed to research and sourcing for this article.
What to Consider When Shopping for Sports Bras for Large Breasts
Sizing
There’s no universal sizing for sports bras, so check the manufacturer sizing charts and measure yourself to start your search, but know that it’s not an exact science, and the bra that feels right is the best option regardless of what the tag says. If you’re ordering online, it doesn’t hurt to order a few sizes and keep the one that fits best. Otherwise, we always recommend trying some on in the store.
More Running Gear: Updated: Jun 11, 2024 2:24 PM EDT • Best Winter Running Shoes for Traction and Warmth • Best Running Tights
Balance Support and Comfort
Sports bras made for larger-chested people tend to be high-impact, which can feel uncomfortably constrictive. The best sports bras for larger breasts will balance wide shoulder straps, chest band, and molded cups to provide support without pinch points.
Closures and Adjustments
Yanking a sports bra over your head can be difficult after sweating, and most larger-sized sports bra models offer a front zipper or a hook-and-eye clasp in the back. The hook-and-eye makes the bra easier to take on and off and also allows for a customized fit. Both of these features help prevent the sports bra from getting stretched out during dressing and undressing as well. That said, we’re big fans of simplicity, and have several over-head models tested and featured.
Ventilation
Even though we love sports bras for daily wear, they also serve a key purpose for workouts, which means breathability and ventilation is critical. Look for a wicking, odor-resistant fabric, sweat-resistant bands, and ventilation in the form of mesh cutouts or strategically placed ventilation areas.
Compression Vs. Encapsulation
Compression and encapsulation are the two ways to keep breasts from moving around during a workout. Compression bras function as a band that flattens the breasts to keep them immobile. The challenge is finding a bra with a band that isn’t too tight. Encapsulation creates stability by keeping the breasts separate and stable in individual cups.
Compression bras are the more common of the two designs and work well for women with smaller breast sizes. As cup size increases, compression bras can create a uni-boob or result in less support as the breasts sag over the band.
Some sports bras come with underwire cups, others with molded cups. It’s personal preference, but molded-cup bras have become more supportive in recent years, and can feel more comfortable with less material and a welded design that offers support without increased tightness.
Fit
A sports bra should be form-fitting, but not too tight. Fit your sports bra by moving your breasts so they are sitting squarely in the cups and aren’t pushing out the sides. There shouldn't be too much excess space where the top of the cup meets your chest. Next, adjust the straps to leave enough room for one finger to fit under the strap. If bra straps hug the shoulders too tightly they can cause maceration, a breakdown of the skin caused by sweat and other moisture.
The underband should sit level at the front and back without riding up and shouldn’t feel constricting around the chest—an easy way to gauge this is if it leaves an indentation after your workout.
How We Selected
Testing on the road, trail, and during daily wear was the name of the game for choosing these sports bras. Secondhand anecdotes and reviews don’t cut it when it comes to apparel that can make or break your posture / comfort / compression levels, and all of these bras have been vetted during hikes, runs, long bike rides, backpacking trips, and general daily wear.
To choose these, we looked for a variety of both encapsulation and compression styles, as well as different closures and support levels. Just because they’re for larger chests, it doesn’t mean they have to be completely compressive, and sometimes a bit of support is all we need. We aimed for enough of a variety that people will have something to choose from regardless of activity level.
Maggie Slepian is a full-time freelance writer in the outdoor industry and has tested gear professionally for almost ten years—she is an avid backpacker, trail runner, bikepacker, and horseback rider and has thru-hiked thousands of miles on the Appalachian, Colorado, and Ouachita trails, along with backcountry travel on terrain including coastal trails, the desert, and high alpine peaks. Maggie has written for New York Magazine, Huffington Post, REI, and Outside. She is a columnist with Backpacker Magazine and is the co-founder of BackpackingRoutes.com. Contact her at MaggieSlepian.com.
Watch Next
Behind the Design: the Wahoo KICKR RUN
What’s the Cost of Being a Runner?
This Adrenaline Fan Loved the Newest Model
Dr. Owen Legaspi is a