The Ultimate Sports Bras for Triathlon

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A reliable and supportive sports bra is among the necessary gear you should get for your triathlon. Sports bras reduce the vertical movement of breasts and increase comfort, giving you confidence while you’re competing.

Triathlon Sports Bra in Ironman

This guide will tell you about the best triathlon sports bra and all the unique features you should pay attention to. So, keep reading to choose the right one for your upcoming event. 

Why you should wear a sports bra with a tri suit?

Sports Bra with TriSuit

Wearing a sports bra with a tri suit during a triathlon is highly recommended due to several reasons.

Firstly, a sports bra provides additional support, reducing the vertical movement of the breasts during vigorous physical activities like running, cycling, and swimming. This can lessen discomfort and the risk of injuries.

Secondly, it can enhance comfort throughout the event, particularly for women with larger breasts who are more prone to experiencing breast pain during exercise.

Lastly, sports bras designed for active use generally dry quickly, which is beneficial when transitioning from the swimming phase to other parts of the triathlon.

Best Triathlon Sports Bras on the Market

Triathlon sports bras are essential. Yet, finding the right one can be a little challenging with all the models available. So, we’ve done some research to offer you 9 of the most practical ones to wear during your training sessions or race. 

1. SheFit Ultimate Sports Bra

SHEFIT Sports Bra

The SheFit bra is designed to deliver the highest level of support, control, and comfort. Featuring 2-way stretch fabric, wearing this bra reduces bounce while running or cycling. Finding your size won’t be an issue as this bra is available in all sizes, from A to I. There are also multiple colors to choose from. 

It has a wire-free design for a natural shape, and the cups are removable for modesty. Moreover, the zipper garage will protect you from chafing. 

Thanks to the Patented Zip. Cinch. Lift.® adjustability, your bra will always feel comfortable to wear. SheFit recommends that you buy several ones and recycle them. This guarantees that each one can last for several years. 

However, women with bigger breasts might need to size up to get more side support. Luckily, you can contact the brand’s Fit Experts to recommend the right size. 

What We Like

  • Comfortable 2-way stretch fabric. 
  • Multiple sizes and colors. 
  • Natural shape and removable cups. 
  • Adjustable design for more comfort and support. 

What We Don’t Like

  • If you have bigger breasts, you’ll need to size up for more side support. 

2. Sweaty Betty Ultra Running Bra

Sweaty Betty Ultra Running Bra

The Sweaty Betty Ultra Running Bra is designed for high-impact workouts, providing you with support and confidence. The bra is made of quick-drying fabric with mesh ventilation for more comfort, and the compression and encapsulation support your breasts up to an F size. 

With multiple colors and sizes available, you’ll find the right one. It’s non-padded for more comfort, and the padded straps will eliminate chafing. Moreover, the straps are adjustable, so you can wear your bra as a racerback or U-back model. 

This bra provides more support for smaller breasts, as larger breasts can still bounce. Moreover, it tends to run small. 

What We Like

  • Quick-drying fabric with mesh ventilation.
  • Non-padded design for more comfort. 
  • Padded straps to prevent chafing. 
  • The bra can be worn in multiple ways. 

What We Don’t Like

  • Doesn’t offer enough support to bigger breasts. 
  • Runs small. 

3. Shock Absorber Ultimate Run Bra

Shock Absorber Ultimate Run Bra

Designed for runners, the Shock Absorber Ultimate Run bra reduces bounce by 78%, eliminates chafing, and increases your comfort and confidence. It features the Infinity 8-Support System that hugs your breasts while running for maximum support. It’s also made from high-quality breathable fabric with moisture-wicking properties. 

The bra’s support system is based on three support levels: the front panel that compresses your breasts together, the middle part that encapsulates each breast, and the sewn construction. The soft and seamless inner and straps prevent chafing during hot and long runs, and the fabric is lightweight for more comfort. The bra is fully adjustable with the back clasp. 

However, this bra comes in two colors and several band sizes from A to G, so it might not work for you if you have bigger breasts. Moreover, it’s a little bit challenging to put on. 

What We Like

  • Reduces bounce by 78% during runs. 
  • Seamless straps and inner for more comfort. 
  • Lightweight, breathable, moisture-wicking fabric. 
  • Affordable price. 

What We Don’t Like

  • Available in only two colors. 
  • Not suitable for bigger breasts. 
  • Not easy to put on. 

4. Enell Sport High Impact Bra

Enell Sport High Impact Bra

This bra from Enell is specifically designed for C cups and above and those who feel nothing else works for them. It’s wire-free for comfort and has hook and eye closures for easy on and off. In addition, it’s stretchy enough to fit over your head and will contain your breasts to reduce bounce. 

Made of NATUREXX® moisture management fabric, this sports bra wicks moisture and keeps you cool on the hottest days. The full-back criss-cross straps provide back support without being too restrictive, while the wide band and neckline prevent movement.

The bra is available in multiple colors and eight sizes, and there are specialists to recommend the right one for you. Although it’s suitable for large-breasted women, the bra’s silhouette isn’t the prettiest and doesn’t fit under many tank tees and t-shirts. The band might also cause some chafing if you don’t get the right size. 

What We Like

  • Suitable for larger breasts. 
  • Wire-free design and stretchy fabric. 
  • Moisture-management material and full back. 

What We Don’t Like

  • The bra doesn’t look attractive under most garments. 
  • The wrong fit can cause chafing. 

5. Under Armour Infinity High Sports Bra

Under Armour Infinity High Sports Bra

Made of the HeatGear® fabric, this Under Armor bra delivers a next-to-skin feeling with a quick-drying and moisture-wicking material. In addition, it comes with mesh panels for more breathability, and the PU-injected one-piece padding provides more coverage. 

It’s specifically designed for running and other high-impact workouts, and the straps are adjustable for a custom fit. However, sizing can be a little challenging as without filling the non-molded cups, they bend into an ugly shape. Also, since only six sizes are available, you might not find one that fits right. 

What We Like

  • Next-to-skin feeling. 
  • Quick-drying and moisture-wicking fabric. 
  • Mesh panels for better ventilation. 
  • Adjustable straps and one-piece padding for coverage. 

What We Don’t Like

  • The non-molded cups don’t work for smaller breasts. 
  • Few sizes are available. 

6. Panache Sport Wired Sports Bra

Panache Sport Wired Sports Bra

With multiple band sizes and cup sizes up to J, the Panache Sport Wired Sports Bra is a great addition to every athlete’s closet as it reduces bounce by 83%. It comes in five colors and is made of moisture-wicking stretch microfiber with mesh for more breathability. The material feels soft and doesn’t cause chafing after long hours of training. 

It features wide padded straps to reduce pressure and cushioned closure for more security without chafing. Although it comes with silicone underwires, they’re extremely comfortable, and the lightly padded cups support each breast. You can also change the straps to a racerback design. 

Some women don’t like the bra’s design and think it looks too bulky. It might be heavy and warm for some users, but in general, it’s good value for money. 

What We Like

  • Reduces bounce up to 83%.
  • Moisture-wicking stretchy microfiber. 
  • Wide padded straps and silicone underwires for support without discomfort. 

What We Don’t Like

  • Looks a little bulky. 
  • Can be too heavy or warm for some users. 

7. Zoot Sports Ltd Tri Bra

Zoot Sports Ltd Tri Bra

As a special choice for triathletes, the Women’s Ltd Tri Bra is designed to keep you comfortable and supported while you’re running, cycling, or swimming. It’s made of Italian fabric with moisture management features for comfort, while the Vento 4-way stretch mesh improves ventilation. 

With seamlink stitch construction, you can practice and race without chafing as you enjoy the next-to-skin feeling. In addition, the racerback design allows for a wide range of motion without being restrictive, and the fabric provides UPF 50+ sun protection

The bra is available in a single color that might not appeal to all users. Moreover, it tends to run small, and only six sizes are available, so you might not be able to find the right fit. 

What We Like

  • Moisture-wicking fabric with 4-way stretch mesh. 
  • Seamlink stitch construction to reduce the risk of chafing. 
  • UPF 50+ protection. 

What We Don’t Like

  • Tends to run small. 
  • Few colors and sizes are available. 

8. Brooks Drive Convertible Run Bra

Brooks Drive Convertible Run Bra

The Drive Convertible Run Bra features high-quality compression for high-impact exercises without sacrificing comfort, allowing you to easily run and cycle. In addition, you can easily hook or unhook the back straps to enjoy a racerback or scoop-back design. 

This full-coverage bra provides a personalized fit with a soft, flexible band and back closure for easy on and off. It’s been biomechanically tested to ensure that it provides maximum support while running and comes in five band sizes and up to DD cup sizes. Yet, it comes in only four colors. 

Although it doesn’t come with a built-in cup, it provides maximum nipple coverage. However, sizing can be challenging, and the bra might roll up. Moreover, the tag doesn’t come off easily and might cause chafing, even if you try to cut it. 

What We Like

  • Compression for high-impact exercises. 
  • Adjustable model with racerback or scoop-back. 
  • Adequate nipple coverage. 

What We Don’t Like

  • The band might roll up if sizing isn’t accurate. 
  • Might cause chafing. 
  • Limited color selection. 

9. Lululemon Run Times Bra High Support

Lululemon Run Times Bra High Support

The sleek Run Times Bra is designed for runners, providing support and comfort with high-quality moisture-wicking fabric. In addition, it’s designed to provide maximum coverage with perforated paneling for better airflow. 

Thanks to the soft underband, there will be no risk of chafing on the hottest days. The straps are padded and adjustable for more comfort, so you can focus on your run. It’s available in multiple colors and cup sizes up to G. 

However, this bra runs small, and some users weren’t impressed with the fit. In addition, if you have bigger breasts, it might not provide the needed support. 

What We Like

  • More coverage with moisture-wicking fabric. 
  • Perforated paneling for ventilation. 
  • Soft underband to prevent chafing. 

What We Don’t Like

  • Runs small. 
  • Doesn’t provide enough support for bigger breasts. 

How to Choose the Best Triathlon Sports Bra

A triathlon bra is an essential component of your gear, so you need to pay attention to a few features before choosing one. 


Choosing quick-drying, moisture-wicking fabric is crucial, as the extra sweat can make you uncomfortable and lead to skin infections. Moreover, mesh or any other breathable fabric will be a plus. 

Compression and Stretch

Finding a sports bra that provides essential compression will keep you supported and reduce bounce. The stretchy fabric guarantees that you won’t feel restricted. 


Your sports bra should feel a little tighter than your everyday bra because it’s supposed to hold your breasts in place while you’re moving. This is why you should consider the band and cup’s fit. If the bra is too loose, it will roll up, and if it’s too tight, it might cause chafing. 

Make sure that the band is elastic enough. If it runs horizontally all around, it might ride up and cause discomfort. Finally, adjustable straps will be a big plus as you can get the perfect fit. 


The main purpose of your sports bra is to provide support without sacrificing comfort. So, make sure that the straps are padded and that there are separate cups for a comfortable fit. Some users prefer underwired bras, but others think that wires are too restrictive, so it’s a personal preference. The same applies to padded cups, but removable padding is preferable. 

Wrap Up

Looking for a supportive and comfortable sports bra should be a top priority, but everybody is different, so various models might work for triathletes. We chose the SheFit Ultimate Sports Bra as our top choice because it accommodates large breasts up to I cup. Moreover, the underwire design provides the needed support without being too restrictive. Yet, if you don’t like this model, you can explore the other options on our list and find a suitable one that works. 

Questions You May Have

Can a sports bra be worn for a triathlon?

Absolutely. A sports bra is highly recommended for a triathlon, considering the rigorous physical activities involved. The bra’s design provides the necessary support during the running and cycling phases, while its quick-drying fabric is suitable for the swimming phase. However, ensure that the sports bra you select is comfortable, fits well, and is designed for high-impact activities.

What type of sports bra is most suitable for a triathlon?

The type of sports bra to wear for a triathlon largely depends on the individual’s comfort, breast size, and the bra’s support level. For triathlons, it’s advised to choose a sports bra designed for high-impact activities. These bras offer optimal support and reduce bounce during the cycling and running phases. Additionally, it should be made from quick-drying, breathable material for the swimming phase. Remember to try on different styles and sizes to find the one that fits you best and provides maximum comfort.

Is swimming in a sports bra acceptable?

Yes, you can swim in a sports bra. However, it’s critical to pick a sports bra specifically designed to withstand water and chlorine, which means it should be made from quick-drying, breathable materials. Sports bras for swimming should also provide good coverage and offer excellent support without restricting your movements. Avoid cotton bras as they tend to absorb water and become heavy, which can impede your swimming performance.

Can you wear a sports bra while running?

Yes, a sports bra is not only suitable but also recommended for running. Running, especially for women, can cause discomfort and even long-term damage due to breast movement. A high-impact sports bra provides the needed support, minimizing breast movement, and significantly reducing any discomfort or pain. Ensure your sports bra is well-fitting and comfortable, as an ill-fitting bra can cause chafing and skin irritation.

Is it possible to compete in a race wearing a sports bra?

Definitely, you can race in a sports bra. In fact, many female athletes prefer to wear a sports bra during races, such as marathons and triathlons, because of the support and comfort they provide. When choosing a sports bra for racing, consider factors like the fabric (it should be sweat-wicking and breathable), the support level (it should minimize bounce), and the fit (it shouldn’t be too tight or loose).

Is it feasible to run a marathon in a sports bra?

Yes, running a marathon in a sports bra is feasible and often preferred. Marathons require high endurance, and a sports bra can provide the necessary support to prevent discomfort and potential damage due to prolonged high-impact activity. When selecting a sports bra for a marathon, look for features like sweat-wicking material, seamless construction to prevent chafing, adjustable straps for a custom fit, and a high level of support to minimize bounce.

Photo of author

Lauren Wilson

Lauren, an adept triathlete and a passionate writer, has been a cornerstone of since its inception. She brings an in-depth, personal understanding of the triathlon world, having competed in numerous prestigious races including the Ironman Worlds and Challenge Roth.

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