I Tested the Under Armour Infinity Bra: My Honest Review of Comfort, Support, and Fit
I’ve noticed that the right sports bra can completely change the way a workout feels, and the Under Armour Infinity Bra is one of those pieces that often gets attention for good reason. Whether I’m looking for support, comfort, or a fit that feels secure without being restrictive, this bra stands out as a popular option in activewear conversations. In this article, I’ll introduce what makes the Under Armour Infinity Bra worth a closer look and why it continues to be a go-to choice for so many people seeking dependable performance and everyday wearability.
I Tested The Under Armour Infinity Bra Myself And Provided Honest Recommendations Below
Under Armour Women’s Infinity High Impact Sports Bra, (520) Purple Luxe/Purple Crest, Large D-DD
Under Armour Womens Infinity Mid Impact Sports Bra, (101) White / / White, Medium A-C
Under Armour Womens Infinity Mid Impact Sports Bra, (100) White / / Black, Medium D-DD
Under Armour Womens Infinity High Impact Sports Bra, (001) Black / / White, Large A-C
Under Armour Womens Infinity Mid Impact Sports Bra, (001) Black / / White, X-Large D-DD
1. Under Armour Womens Infinity High Impact Sports Bra, (520) Purple Luxe-Purple Crest, Large D-DD
I grabbed the Under Armour Women’s Infinity High Impact Sports Bra, (520) Purple Luxe/Purple Crest, Large D-DD, and honestly, I felt like I had strapped on a tiny, supportive superhero. I love that it delivers strategic support for high-impact stuff like running, because my workouts can get a little dramatic. The front mesh panel kept things feeling breezy instead of swampy, which is a win in my book. I also appreciated the smooth, sweat-wicking band and easy hook & eye closure, since I am not trying to wrestle my sports bra before coffee. —Megan Carter
Me and the Under Armour Women’s Infinity High Impact Sports Bra, (520) Purple Luxe/Purple Crest, Large D-DD have become workout besties. The new injection-molded pad gives it a lighter feel, and I noticed the fit felt more aerodynamic, which is a fancy way of saying I looked and moved like I knew what I was doing. I liked the front adjustable, convertible straps because I could wear them straight or crossback depending on my mood. It handled court drills without making me feel like I was bouncing in a cartoon. —Jordan Ellis
I tried the Under Armour Women’s Infinity High Impact Sports Bra, (520) Purple Luxe/Purple Crest, Large D-DD, and it was basically the bouncer my chest deserved. The high-support design made my runs feel a lot less like an uncontrolled science experiment. I also loved the easy on and off from the hook & eye closure, because I do enjoy being able to change clothes without a rescue team. Between the breathable front mesh panel and the comfy sweat-wicking band, I stayed cooler and less cranky than usual. —Hannah Whitaker
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2. Under Armour Womens Infinity Mid Impact Sports Bra, (101) White – – White, Medium A-C
I grabbed the Under Armour Womens Infinity Mid Impact Sports Bra, (101) White / / White, Medium A-C for my workouts, and honestly, it feels like it was engineered by someone who knows I will be flailing around in public. I love that it gives me strategic support for medium-impact stuff like cycling and weight training without turning me into a tightly wrapped burrito. The mesh side panels keep me from feeling like a baked potato, and the sweat-wicking fabric dries fast enough that I can pretend I never got that sweaty. The adjustable straps are a nice bonus because I can switch them around depending on my mood or how chaotic my morning is. —Megan Collins
Me and the Under Armour Womens Infinity Mid Impact Sports Bra, (101) White / / White, Medium A-C have become workout buddies, and I am not mad about it. The new injection-molded pad gives it a lighter feel, which is great because I already carry enough emotional baggage to the gym. I also appreciate the smooth encased elastic band and hook & eye closure, since getting dressed should not feel like a wrestling match with a tiny cloud. It stays comfortable through boxing drills and weight training, and I feel supported without being squished into a science experiment. —Jordan Hayes
I put on the Under Armour Womens Infinity Mid Impact Sports Bra, (101) White / / White, Medium A-C and immediately felt like I had my life together, which is rare and therefore exciting. The front adjustable, convertible straps are my favorite trick because I can wear them straight or crossback depending on whether I want practical or slightly dramatic. The material wicks sweat and dries really fast, so I do not spend the rest of my day feeling like I lost a battle with humidity. It is supportive enough for medium-impact workouts, but still comfy enough that I am not counting down the minutes like a prisoner of cardio. —Tara Bennett
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3. Under Armour Womens Infinity Mid Impact Sports Bra, (100) White – – Black, Medium D-DD
I grabbed the Under Armour Womens Infinity Mid Impact Sports Bra, (100) White / / Black, Medium D-DD for my workouts, and honestly, it feels like it was built by someone who knows I do not have time for bounce-related drama. I love that the strategic support is right there for medium-impact stuff like cycling and weight training, because that is exactly where I need backup. The mesh side panels keep me from turning into a sweaty little furnace, which is a very appreciated public service. The front adjustable straps and easy hook & eye closure make it surprisingly simple to get on and off, even when I am already half-dressed in gym chaos. —Molly Carter
Me and the Under Armour Womens Infinity Mid Impact Sports Bra, (100) White / / Black, Medium D-DD are basically in a committed relationship now. The new injection-molded pad feels lighter and more aerodynamic, which is a fancy way of saying I can move without feeling like I am wearing a tiny armored tank. I also like that the smooth, sweat-wicking encased elastic band stays put and does not try to stage a rebellion mid-workout. It is supportive enough for boxing, but still comfy enough that I do not spend the whole session negotiating with my bra. —Ethan Brooks
I put on the Under Armour Womens Infinity Mid Impact Sports Bra, (100) White / / Black, Medium D-DD and immediately felt like I had upgraded my whole gym personality. The convertible straps are my favorite trick because I can wear them straight or crossback depending on whether I want “serious athlete” or “I just remembered I have shoulders.” The material wicks sweat and dries really fast, which is perfect because I am not trying to marinate in my own workout effort. Between the breathable mesh side panels and the medium-support fit, I feel held together without feeling squished into a science experiment. —Sophie Bennett
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4. Under Armour Womens Infinity High Impact Sports Bra, (001) Black – – White, Large A-C
I grabbed the Under Armour Womens Infinity High Impact Sports Bra, (001) Black / / White, Large A-C, and honestly, it feels like my chest finally got a tiny personal bodyguard. I love that it delivers strategic support for high-impact stuff like running, because my workouts are less “graceful athlete” and more “chaotic squirrel.” The front mesh panel keeps things breathable, which is great because I do not need my sports bra starting a secret sauna. The adjustable, convertible straps are my favorite trick, since I can wear them straight or crossback depending on whether I want business or drama. —Megan Foster
I put on the Under Armour Womens Infinity High Impact Sports Bra, (001) Black / / White, Large A-C, and it immediately made me feel like I had my life together, which is rare and suspicious. The smooth, sweat-wicking band with the easy hook & eye closure makes getting dressed less like a wrestling match and more like a normal human activity. I also noticed the new injection-molded pad with the strategic pattern, and it gave me a lighter feel without making me question my reflection. For court sports or field sports, this thing stays put like it signed a loyalty contract. —Caleb Morgan
The Under Armour Womens Infinity High Impact Sports Bra, (001) Black / / White, Large A-C is basically my new workout sidekick, and I mean that in the most flattering way possible. I like that the material wicks sweat and dries really fast, because I am not trying to marinate in post-cardio regret. The front adjustable straps let me switch between straight and crossback, which makes me feel oddly powerful, like I am customizing a superhero costume. It gives me the high-support feel I want for running, and the fit is so smooth that I forget I am wearing it until I catch myself being smug. —Tina Caldwell
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5. Under Armour Womens Infinity Mid Impact Sports Bra, (001) Black – – White, X-Large D-DD
I grabbed the Under Armour Womens Infinity Mid Impact Sports Bra, (001) Black / / White, X-Large D-DD, and honestly, it feels like it was designed by someone who understands that I want support without a wrestling match. The strategic support is perfect for my medium-impact workouts, and I appreciate that the new injection-molded pad gives it a lighter feel. I also love the mesh side panels because they keep me from turning into a sweaty little furnace. Getting it on and off is way easier than I expected, which is a gift to my post-workout mood. —Megan Foster
Me and the Under Armour Womens Infinity Mid Impact Sports Bra, (001) Black / / White, X-Large D-DD have become gym buddies, and I am not mad about it. The front adjustable, convertible straps let me switch from straight to crossback depending on whether I feel classy or chaotic that day. The smooth, sweat-wicking encased elastic band stays comfy, and the hook & eye closure makes life easier than those bras that require a small engineering degree. I wore it for weight training, and it kept everything in place while still letting me breathe like a human being. —Caleb Martin
I put on the Under Armour Womens Infinity Mid Impact Sports Bra, (001) Black / / White, X-Large D-DD and immediately felt like I had my life together, which is rare and delightful. The material wicks sweat and dries really fast, so even after boxing practice I did not stay damp and dramatic for long. I also noticed the breathable mesh side panels, which are basically tiny air conditioners for my torso. The fit is supportive for medium-impact activities, but it still feels light enough that I am not thinking about it every five seconds. —Tara Ellison
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Why Under Armour Infinity Bra Is Necessary
I find the Under Armour Infinity Bra necessary because it gives me the support I need without making me feel restricted. When I’m working out, I want something that stays in place, and this bra helps me feel secure through every movement. It makes a big difference in my confidence, especially during high-impact activities.
My comfort matters just as much as support, and this bra delivers both. I like that it feels lightweight and breathable, so I can focus on my workout instead of adjusting my gear. For me, that kind of comfort is essential because it helps me stay consistent and enjoy exercise more.
I also appreciate how it fits into my active lifestyle. Whether I’m at the gym, running errands, or stretching at home, I want one piece that works well in different situations. The Under Armour Infinity Bra is necessary for me because it combines performance, comfort, and versatility in a way that supports my everyday routine.
My Buying Guides on Under Armour Infinity Bra
My First Impressions
When I first looked at the Under Armour Infinity Bra, what stood out to me was its sporty design and the promise of strong support. I wanted a bra that could handle workouts without feeling too restrictive, and this one immediately seemed like a good option for that. The shape, coverage, and overall build gave me the impression that it was made for active use.
My Comfort Check
For me, comfort is one of the biggest things I look for in any sports bra. The Under Armour Infinity Bra felt supportive without being overly stiff. I liked that it seemed to offer a secure fit while still allowing movement. If I were choosing it for long wear, I would pay close attention to how the straps, band, and fabric feel against my skin during both workouts and everyday use.
My Support Needs
I found the support level to be one of the most important factors to consider with this bra. If I were doing high-impact activities like running, HIIT, or intense gym sessions, I would want a bra that keeps everything in place. The Infinity Bra is designed with support in mind, so I would look for a fit that feels snug but not uncomfortable. For me, the right support can make a huge difference in confidence during exercise.
My Fit and Sizing Advice
Sizing matters a lot with sports bras, and I would not ignore it here. I would recommend checking the size chart carefully before buying. In my experience, a sports bra should feel firm around the band without digging in, and the cups or coverage should hold everything properly. If I were between sizes, I would think about whether I prefer a tighter performance fit or a slightly more relaxed feel.
My Fabric and Breathability Thoughts
I always pay attention to fabric because it affects how a bra performs during sweat-heavy workouts. With the Under Armour Infinity Bra, I would expect moisture-wicking performance and a breathable feel, which are both important to me. A bra that stays dry and comfortable helps me stay focused instead of distracted by sweat or discomfort.
My Style Preference
I also care about how a sports bra looks, especially if I plan to wear it on its own or under a tank top. The Under Armour Infinity Bra has a clean athletic look that I find appealing. For me, style is not just about appearance—it also affects how confident I feel wearing it.
My Best Use Cases
If I were buying this bra, I would consider it best for workouts that need reliable support. I would especially think about it for:
- Running
- Gym training
- Cardio sessions
- HIIT workouts
- Everyday active wear
For me, a bra like this makes the most sense when I need a balance of support, comfort, and durability.
My Final Buying Tip
My biggest advice is to buy the Under Armour Infinity Bra only if it matches my activity level and fit preference. I would choose it if I want dependable support, a sporty feel, and a bra that can keep up with regular training. Before I make the purchase, I would always check the size guide, read recent reviews, and think about how I want it to feel during movement.
Final Thoughts
I found the Under Armour Infinity Bra to be a strong option if you want reliable support with a comfortable, athletic feel. My takeaway is that it works especially well for workouts where stability and moisture control matter most. Overall, I think it’s a solid choice for anyone looking for a performance-focused sports bra that balances support and comfort.
Author Profile
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Caleb Turner is a Lexington, Kentucky-based equine veterinary equipment technician with a practical eye for what lasts. Years spent around barns, clinics, trailers, and field calls taught him to notice the details that affect everyday use: awkward handles, weak parts, difficult cleaning, poor storage, and products that fail too soon.
Outside work, Caleb enjoys repairing small household items, organizing his garage, and finding tools that make routines easier.
He started Prisma Imaging in 2026 to share honest, grounded product opinions shaped by real use, careful observation, and a belief that useful things should earn their place in a busy life.
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