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🔥 Flatten your chest, not your style!
The Underworks USA Econo High Power Chest Binder Top (Model 943) offers serious compression with a breathable cotton lining, available in inclusive sizes XS to 3XL. Designed for comfort, mobility, and affordability, it’s a trusted choice for FTM, non-binary, and transgender individuals seeking a smooth, masculine silhouette that fits seamlessly under any outfit.

| ASIN | B01EKN749M |
| Age Range Description | Adult |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #210,604 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,947 in Women's Tanks & Camis |
| Brand Name | Underworks |
| Care instructions | Machine Wash |
| Closure Type | Pull-On |
| Collection Name | Model 943 |
| Color | Black |
| Customer Reviews | 4.0 out of 5 stars 2,734 Reviews |
| Fabric Type | Shell: 70% Nylon / 30% Spandex Lining: 100% Cotton |
| Fabric type | Shell: 70% Nylon / 30% Spandex Lining: 100% Cotton |
| Fit Type | Regular |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Import Designation | Made in the USA |
| Item Type Name | Tank Top |
| Item Weight | 6 ounces |
| Manufacturer | Underworks |
| Material | Nylon Blend |
| Number of Items | 1 |
| Occasion | construction |
| Origin | Made in the USA |
| Part Number | 943 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Size | Medium |
| Sleeve Length Description | Sleeveless |
| Style | Single Item |
| Style Number | 943 |
| UPC | 846330048585 |
| Unit Count | 1 Count |
S**K
Great on a budget binder with a thick edge seam
*For size reference: 5’6”, ~110lbs, 29” rib measurement, 34” chest measurement which makes me a C-cup but close to a D* TL;DR: get the correct size for the best bind, could see the material being an issue for people with more sensory issues (the edge seam is thick and the outer layer doesn’t always lay perfectly flat) but for under thicker T’s or shirts with patterns it’ll work great. Second time I’ve ever worn a binder, but this one is the correct size (first was one size too big) and can def see more flattening. With the extra flattening comes the warning of NOT working out/heavy activity while wearing this. I had a slightly larger size on yesterday (different brand) and could easily see doing some light exercises, nothing crazy. But with this I can feel the compression more and am being mindful about it as the day goes on. I have bigger boobs that I’ve never felt comfortable with but a small frame so it’s been tight sport bras for most of my life. Finally thought I’d give binders a try. While this one does bind me the best so far I’m only wearing it under a T-shirt. If I pull the shirt tight against my body I can definitely see the outline of the edge seam so keep that in mind if you plan on wearing it under thinner or more sheer clothes. Under a thicker shirt/sweater or anything with a pattern I think it’ll be hidden pretty well. While wearing a size too big (which is better for more activity) yesterday, I did catch myself hunching over a lot more because I felt like my boobs were going to start sagging and I’d have to go readjust. But so far with this one I don’t feel like they’re going to go anywhere. Haven’t done much arms-over-my-head movements to test that though lol. Overall I feel like this will be a great binder if you’re on a budget and don’t mind the thicker edge seam
S**L
Good first binder, but the bottom rolls up if you have any belly
So I finally decided to get a binder, and this is a great start I think. The fabric is a bit rough at first (softens after washing) but there's a softer liner in the front so that wasn't an issue. It's also easier to get on than expected (I pulled up over my hips instead of over my head-I've heard enough stories and don't have any help available if I get stuck XD). It was way more comfortable than I expected to be, and the compression was better than my tight sport bra/standard compression top combo. Also, I was pleasantly surprised that the arms didn't 'bite'. Every time I looked at binders, it seemed like the arm holes were super tiny. I'm not really big, but I have the dreaded pudge around my armpits and certain tops and sports bras get uncomfortable and dig in. This top doesn't. My biggest issue is that because I don't have a flat belly, the bottom rolls up a lot, all the way around, so it makes a weird bump around my torso under my shirt. I tried putting some tighter tank tops over it to hold it in place, and it kind of works? I dunno. Plus this opened up a whole new sensory annoyance with the cropped top- I think if it had something soft around the bottom, or even silicone-y to help hold it in place it would be way better, but the hem is pretty rough, even after washing. I'll keep using it, but my next one's going to be a full tank.
L**S
Just think its neat.
I dont write reviews often, but this is the second underworks binder I’ve bought from here. Its a great price, the sizing is true to the chart, and it is insanely breathable. Most binders I’ve owned usually don’t last me much more than a few months, as I work blue collar. The front panel of the binder is heavy and extremely durable, whereas the back is light and breathable. This particular brand of binder has lasted me more washes, and more uses than any binder I have owned. The way its formed makes me feel like I have actual pecs and like im not just wearing some glorified bra. I have t-shirts and socks that have worn down faster than this thing, and the one im replacing ive had for well over a year and a half now. I 100% recommend this a continuous binding option.
T**S
Breathable and worked well until it stretched out
This was my favorite binder for a few months, but then it stretched out and lost a lot of compression power. Also had a lot of issues with hem rolling. There's no rigid panel, so the compression is entirely from the stretch material. Comfortable to wear though, not scratchy or thick and the back is very breathable. Would probably be good for summer. Just wish it lasted.
N**Z
Decent
I ordered an XL, my measurements on the suggested sizing was a XXL but I’m almost certain that would have been too big for me. upon trying this on, I could have gotten an L for a more tighter fit and more binding, however I have asthma and I was worried that too small of a binder would make me wheeze so I ordered large, assuming that it would fit exactly the way it does. But this binder is a good size for light binding days, days I wear a baggier shirt etc. it is a LITTLE baggy on my neckline and it’s a little larger on my stomach / it floats and doesn’t hug my tummy tight, but I actually prefere it that way as I don’t want to look like a muffin top. It fits me like a high neck crop tank. My measurements are : 17in across shoulder to shoulder 42 across my chest (largest section of my chest at nipples) I took this measurement laying down to see the actual spread of my chest at it’s largest. 38 in underbust (I’m a 38 DD for reference) My torso is fairly short My true waist is 36. All in all, I will probably order a large to try it out, and probably order another xl so that I can have a back up for when I was this one.
F**X
Poor Craftsmanship
Let me preface this with "I may have gotten a dud but..." Like I've read in other reviews, the fabric is fairly see-through which is not shown in the product photo. I don't care how see-through the material is, however, so I purchased one anyway. First the good: the cotton inside is very soft and comfortable, it is easy to move in, and compresses just as well as my other garments. Now the bad: the front (stretchy) panel had more length or fabric to it, so no matter how much I adjusted it the seams could not lie flat, causing giant rolls around the neck, bottom ridge, and one armpit. Upon flipping the garment inside out, I could see several large wrinkles and buckles in the cotton fabric. To me, someone who sews and crafts occasionally, it looked as if it was hastily put together and not cut or aligned properly. This garment is impossible to wear out, because even through a very loose shirt the "rolls" are INCREDIBLY visible, as each is at least a quarter of an inch in diameter. As a final note, my correspondence with customer service was less than satisfactory. I was told something along the lines of "this is an entry level product which is probably why it seems different than others you've had in the past" with no acknowledgement of my detailed description of the problem and the shoddy craftsmanship of the garment and the fact that it looks little like the product image. If you have problems with it, don't bother, just return it. Definitely not worth $20.
K**Y
Perfect
Initially I thought a medium would be too big, but I was okay with it being a bit loose. Amazon recommended it based on my height and weight and sure enough, its perfect. The fabric is a bit rough but if it's the right size it shouldn't rub against your skin too much. The fabric on the back is thin, and the material overall feels stretchy and breathable but still binds very well. I'm really glad I did my research for purchasing this binder, this was the one brand I consistently saw people say positive things about, and I agree with them. It's simultaneously on the cheaper end and high quality binding-wise. Its also practically invisible under my shirts, even thinner ones. Do keep in mind, my chest is small/medium which definitely could influence the effectiveness of the bind but I have heard from larger chested people that underworks can be effective for them as well (I'm sure there's reviews regarding that here)
P**E
essentially just an expensive sports bra
didn’t bind me at all… I’m a 34 D and ordered the medium size. maybe I got a size too large or something? the fabric also has a weird rough and scratchy quality to it, though the front panel is soft. it might work if you need something with light compression to exercise or swim in.
L**N
Schrott
Naja außer das er extrem auf den Magen drückt bringt diese Teil nichts. Der Stoff ist auch mega unbequem zum tragen.lieber ie Finger weg von diesem teil
M**A
Super bueno y util
Excelente producto, puedo usar cualquier tipo de ropa y no se nota para nada, nadie sabe q lo uso, excelente precio
Y**H
Works well
- Binds well - Quite tight, gets uncomfortable after a few hours - I can personally ignore fabric, but the back panel may be uncomfortable with those with strong sensory issues
B**Y
Very soft!
I must have ordered a different model than I had before because the material of this binder was surprisingly very soft! The front inner lining of the chest binder has a very soft material which is great if you’re like me and you have sensitive skin. This binder also doesn’t roll up all the time like I’ve found the other models to do. The only downside is that I’ve found that it’s not quite as restrictive as my other underworks binders and therefore, as a big chested pre-op ftm dude, there’s still a faint silhouette of my chest through the binder. This isn’t a problem when wearing baggy shirts though, which I do all the time anyway haha Very good binder, I recommend it as a more breathable and softer binder. I’d buy another one of these to keep for days where my sensory issues flare up. Very good binder!
M**K
Gaat heel lang mee
Ik was het altijd op 40º en niet in de droger en ze gaan heel lang mee. Maar ik heb zelf geen ervaring met het dragen. Wel goede voering aan de voorkant, lijkt katoen (oftewel niet zweten) achterkant heeft geen voering
Trustpilot
3 weeks ago
2 months ago