Infinity Mid 2.0 Medium Support Sports Bra (A-DD)
Product code: T128802S
About this style
Discover unrestricted movement with this Infinity Mid 2.0 sports bra from Under Armour. Created for medium-impact workouts, it features unique responsive support technology paired with featherlight hollow foam padding for a weightless feel. The fabric ensures durability, while the non-wired design provides total support without compromise. A hook and eye fastening provides secure wear, and the sporty strappy racer-back straps with bold Under Armour branding complete the athletic aesthetic.
Details & care
Fit and style
•
Hook and eye fastening
•
Padded
•
Non wired
Composition
Body - 87% polyester, 13% elastane
Care
Machine wash according to instructions on care label
Under Armour
Infinity Mid 2.0 Medium Support Sports Bra (A-DD)
Sorry, this item is no longer available
Discover more in Sports Bras
Reviews (310)
love these for crossfit
Originally posted on Under Armour
Yes, I recommend this
the only thing that holds it in. honestly! this is truly high support.
Helpful?
Sequel is rarely better than the original
Originally posted on Under Armour
No, I don't recommend this
I wore the infinity high 1.0 bra for over 5 years. I got it when it first came out and it was a game changer for me. I have raced multiple marathons, half marathons, and triathlons of all distances (from sprint to Ironman) in those bras. When it came time to swap the worn out ones, I came to find the 2.0. I ordered what I thought would be my size (M, D-DD) and once it arrived and I tried it on it felt too big. Comparing the new to old, it was clear the cups went further up into the armpits (see photo). I decided to keep it and try it on a run. The first run (~4 miles) wasn’t great. The strap adjuster kept sliding down (never an issue with the infinity 1.0). I wore it again this weekend for another run and got chafing under the right strap. Something that never happened on the previous iteration. And when you’re racing an Ironman 70.3 or full Ironman and have to rely on the straps staying in place all day, this isn’t it. I prefer the cross strap style that was fixed in the old one too. This makes me nervous that it could break or slip and cause the strap to come undone. I’ve had probably 7 or 8 of the infinity high 1.0 bras over the last 5ish years and I’m feeling like I’m back to square one in finding a compressive, breathable, quick drying sports bra that fits my chest and holds up to the training and race demands. Really disappointed in the update and hope we can get the 1.0 version back.
Helpful?
Replied
26 August 2026
Hi, there! When a sports bra doesn't deliver on what it promises, that's a real disappointment and we're sorry that happened. Straps that don't stay put and gear that causes chafing isn't OK, and we know it. Thanks for calling this out and for your loyalty throughout the years. If you're open to it, we'd love another shot at getting you into something that elevates your style and performance games. Please look for an email from me on how we can. And running all those races? You're the GOAT!
new favorite sports bra
Originally posted on Under Armour
Yes, I recommend this
needed to replace my sports bras. was tired of the racerback. wanted something with better support and something that didn't give me the 'una-boob' effect. I don't run anymore but I like high support. This bra is perfect. Compression is good. straps are adjustable. Coverage is good. Best part is that the bra can convert to'X' strap. I'm 58, bra size 36C, ordered M A-C. Usually fall between M and L bra sizes. Large was too big. Medium fit perfectly.
Helpful?
Infinity 2.0 sports bra
Originally posted on Under Armour
Yes, I recommend this
ONG!! Love it. Never going back to a regular bra again!!
Helpful?
No uni-boob! Support and shape!
Originally posted on Under Armour
Yes, I recommend this
This bra is a game changer. Holds everything in place and provides great support without causing your breasts to be squeezed into one round lump on the front of your chest. Excellent for running/jogging/HIIT, everything! Have bought 3 of them now!
Helpful?
Sizing is too Broad
Originally posted on Under Armour
No, I don't recommend this
I don't know why I thought that a bra sized for A-C cups would fit me. That's a very large range for a single size. Anyway, the fit wasn't bad, but the side panels pouf out strangely from the band. It's too bad that retail stores no longer exist to try on items for fit. The bra is well-constructed with nice materials. Also, being able to adjust from the front is a brilliant design.
Helpful?
Replied
11 August 2026
Hey, there! A sports bra that doesn't have a next-level design? That's a no for us and we're sorry our gear didn't provide you with the performance you were looking for. We do sell our gear in Under Armour Brand and Factory houses, along with other retailers, which may be helpful for next time! We're locked-in on finding something that would work better for you. Please look for an email from me so we can discuss.
Ajuste perfecto
Originally posted on Under Armour
Yes, I recommend this
creo que es el mejor bra deportivo que he tenido su ajuste comodidad y diseño son perfectos... me quedaré con esta marca.
Helpful?
Prefect for big cups
Originally posted on Under Armour
Yes, I recommend this
It fits well and prefect with ppl need a better support
Helpful?
This Is It
Originally posted on Under Armour
Yes, I recommend this
This is the high impact support bra we’ve all been searching for. As a relatively petite (5’5”, 120 pounds) marathon runner with implants, I’ve needed a sports bra that actually provides true, high impact support while being comfortable enough to withstand 60 miles a week of running. This bra is it. Worn cross back, there is truly no bounce yet the rib cage band is not so tight that it restricts breathing. I’ve tried Brad advertised as high impact from literally every brand and none have performed like this one. Highly recommend for athletes who need true no bounce support.
Helpful?
Infinity 2.0 Bra
Originally posted on Under Armour
Yes, I recommend this
My measurements say I'm a medium but the bra is too tight. I'm a 36 C. I'm exchanging for a large. So if you are on the cusp of the isizes go bigger is my recommendation
Helpful?
Replied
16 July 2026
Hi, Diane! We're so sorry we didn't get the sizing right on the first try. We know what an inconvenience that can be. We appreciate you giving us another shot and for calling this out. Please look for an email from me so we can further connect on this.
No bounce for runs
Originally posted on Under Armour
Yes, I recommend this
I've tried a bunch of different bras for running and this is the first that actually eliminated almost all bouncing and is not super bulky. For reference I am 5'8", 145lb, 37" bust, 29" waist, short torso. Ordered S D-DD (I'm a 32DD) and I can't clasp it past the loosest hook. At first I thought it might be too tight around the band but it worked out fine during a 2.5mi run (no interference with breathing or feeling squeezed, or digging; I forgot it was there at all), and I expect it may stretch out too, so I'm sticking with this size. I normally prefer unpadded / removable pad bras, but I didn't feel like this made me look too big or bulky.
Helpful?
Perfect
Originally posted on Under Armour
Yes, I recommend this
Supportive and comfortable. No bounce and no chaffing. My search for the perfect sports bra is over.
Helpful?
LOVE it, but there's one minor issue
Originally posted on Under Armour
Yes, I recommend this
These bras fit great and are really comfortable. I've gotten 3 so far, and am loving the new option with bigger cup size. My only issue is with longevity: over time, while the rest of the bra holds up, the text on the inside of the straps that's meant to prevent sliding turns to mush and slides off, exposing the adhesive.
Helpful?
clasp
Originally posted on Under Armour
No, I don't recommend this
I saw someone mention the shoulder clasp and how it can fall out. I should have pain attention. The first wash in a garment laundry bag and one of the shoulder clasps is gone. I can't find it. The bra is of no use to me any longer. It also has sizing issues. The cups are really large. Much larger than they should be for a sports bra.
Helpful?
Replied
08 June 2026
Oh no, we hate that this happened, especially since you were careful with washing it. That is so frustrating, and we can completely understand how the fit and the clasp issue would make it a letdown. Please look out for an email from me to help get this sorted!
Not a High Impact Sports Bra
Originally posted on Under Armour
No, I don't recommend this
I love under armour but this is a disappointing purchase. The metal on the straps cuts in on the sides. The band rolls up which is annoying and uncomfortable. Feel like they were more concerned about still having a boob shape then holding the girls where theyre suppose to be to be active.
Helpful?
Replied
28 May 2026
Hi, Becky! Thank you for the love, we appreciate you! However, we're really sorry this style missed the mark. The straps digging in and the band rolling up sounds extremely frustrating, especially when you’re expecting support and comfort for active wear! I'll be reaching out to you shortly, I would be more than happy to assist you with this.
Best bra especially if you have a large chest
Originally posted on Under Armour
Yes, I recommend this
I've been looking for a good bra for workouts, especially cardio and this is the one. I have a small rib cage and large breasts so sizing of s, m, l etc doesn't work but this bra does. It's so good I bought it in 4 different colours!!!
Helpful?
Perfect for workouts
Originally posted on Under Armour
[This review was collected as part of a promotion.] The UA Infinity 2.0 Mid Impact Bra is super comfortable, supportive and perfect for workouts. The adjustable straps and breathable fabric make it easy to wear all day. Definitely one of my favorite sports bra.
Helpful?
Best sports bra on the planet!!!
Originally posted on Under Armour
Yes, I recommend this
I used Chat GPT to find a sports bra, beacuse I was sick of bringing home many different kinds from stores only to find out it doesn't even fit me or no support etc etc. I'm so glad I did that cause with the help of AI I have found the best sports bra ever. Couldn't have asked for anything better. Right amount of support, easy to put it on even if I want to criss cross on the back. Very well made as well I can see using these sports bras for years to come. Thanks UA for creating an amazing product so I can enjoy any type of exercise and feel confident!!!
Helpful?
Comfy!
Originally posted on Under Armour
Yes, I recommend this
The most comfiest sports bra I’ve ever had
Helpful?
Only high Impact I get
Originally posted on Under Armour
Yes, I recommend this
The cups are shaped which is great for under loose shirts (providing shape), and the straps are exactly the right width and strength. They can also be adjusted. The bottom strap also doesn't roll under during running!
Helpful?
1 of 52