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🔥 Sculpt your hourglass instantly — because your waist deserves the spotlight!
The YIANNA Women's Underbust Latex Waist Trainer combines durable 25 spiral steel boning with high-compression latex to reduce waistline by up to 3-5 inches instantly. Featuring a breathable, moisture-wicking dual-layer fabric and adjustable triple hook closures, it supports posture, boosts thermal activity for enhanced sweating, and is perfect for postpartum recovery or everyday wear. Available in 10 sizes and multiple colors, it’s a versatile, professional-grade body shaper designed to elevate your silhouette and confidence.
















| ASIN | B07S8PPPJS |
| Age Range Description | Adult |
| Apparel Closure Type | Hook and Eye |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #2,365 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #3 in Women's Shapewear Waist Cinchers |
| Brand Name | YIANNA |
| Care instructions | Hand Wash Only |
| Color | Black (25 Bones, Breathable) |
| Customer Reviews | 4.2 out of 5 stars 5,126 Reviews |
| Fabric Type | Latex |
| Fabric type | Latex |
| Fit Type | Slim/Fitted |
| Fit to Size Sentiment | True |
| Garment Size Country | United States |
| Item Type Name | Waist Shapewear |
| Manufacturer Part Number | YA20173-Black-XS |
| Material Type | Nylon, Latex, Spandex |
| Number of Items | 1 |
| Origin | Imported |
| Product Benefits | Waist Reduction |
| Product Care Instructions | Hand Wash Only |
| Size | X-Small |
| Style Number | YA20173-Black-XS |
| Target Use Body Part | Whole Body |
| Unit Count | 1 Count |
B**Y
Awesome value! Well made but sizing is confusing!
I love it so far! Sizing was confusing but I read a LOT of reviews and I'm glad I got the correct size, it is tight but I can still move and breathe comfortably in it, in fact I slept in it the first night (I dont recommend doing this if you're new to waist training as this will give you back pain)! I ordered a size Large and I am 4ft 11 and 3/4in tall, measure 36A bust, 33in waist, 39in hips and weigh 160lbs. I will order the Medium if/when this gets too easy to put on/wear. I was sweating like crazy putting this on (lay on your back on your bed with a pillow to support your neck and clasp from bottom moving up) but once it's on it stays put, no rolling. The length is about perfect in the front from underbust to a bit below my hip bone so it is long enough to squeeze that underbelly pooch over the cooch, the back could have been maybe 1 or even 2in higher so that back fat wont roll and spill over top but because I'm using this to cinch my waist I dont mind it much since I wear this waist trainer over a spandex full body shaper. The material feels very sturdy so far no bones have popped out, but since this is a very rubbery latex I would def always wear this over a tank or cottony undergarment as it will cause itching with skin contact especially when sweating. I opted for the $29 breathable perforated latex in black with 22 steel bones. Will update review if anything changes!
E**T
Love it! Fast shipping! Good quality! I never leave a review But...
I am 5’7 179-175lbs XL fits I first ordered a medium and was WAY too small for me. Returned it (super easy and quick) and bought a XL. I was able to put it on with the second set of hooks so I have one more set to tighten but seems to be worth the money. I’ll post progress pictures at the end of the month. Shipping is super quick too! Fits great and is surprisingly comfortable to wear! I normally wear a workout belly band that folds and bends and slides around. This makes my core feel tight, helps with my posture, and hoping I’ll lose some inches. I got it yesterday wore it for 9hours with no issue. I’ve had it on since I woke up today and I have a busy 2yr old but have no discomfort. My husband said it looks great even with a tight tank top under it’s super smoothing! Just kind up pushes on the upper back boob fat but it’s not bad!
N**A
Quality
I wanted to return it because it looked liked it has been used, but otherwise this is the best waist trainer
K**A
Helps with postpartum pooch
Ladies, I definitely recommend this corset. I was going to buy another one with a more traditional structure from another company online (and I still will, after this one), but I am glad I started out with this one. First of all it is half price and I needed to get used to wearing a corset as it was the first time buying one. I am a first time mom. I am 5’5 and weight 125 lbs, with an athletic shape and no waist definition. But guys, pregnancy changed my body for the worse… I could handle it all, aside what it did to my stomach area (fat, loose skin, flared ribs and diastasis recti). The separation was as large as my hand and the lack of core strength looked really bad on my frame. I also had a csection so I could not /would not wear anything painful or constricting for months. Just no. I am now almost a year PP and my abs separation is better but not resolved. Still bad enough to feel like it will never be the same. I searched high and low for a simple yes or no answer to if a corset can help knit the abs back, especially after the crucial first 4 months when your body is healing and repairing. The answer, in my personal experience, is yes! In a little more than a week wearing this corset for a minimum of 6 hours and the separation is definitely less gaping. Call is muscle memory (lol, see what I did there), or logic, I love my results. I can’t imagine what a whole month will do. This has definitely encouraged me to start working out again and targeting my waist ( hula hoop). The corset is starting to have a different shape than the rectangle it came in, as it is morphing to my body. I measured it because of some reviews saying that the corset lengthens and stretches instead of you loosing inches, but it is still the same. I chose to size down (size S) because I was in between sizes and my goal was to go down un inches. I almost thought I made a #big #mistake, but it turned out alright after getting used to it the first few times. I am still at the first tow of hooks, though 😅 Last but not least, I wear this corset with a thin top/tank under my clothes. I am in a hot climate right now and it still is comfortable. Maybe the weather helped with some results, now that I think of it, in terms of reducing fat. I also washed it once and it came out good as new 😊
K**Z
Excelent
I love it, it doesn't bother and it has good material
W**N
Bulky
As far as how it's made it's pretty nice quality but mad bulky I feel like I have on police gear also the reviews about sizing up idk If you have a pretty petite shape get a small I got a medium and I am not that snatched. It's hard to put the little prong things in like I damn near lost a thumb due to how difficult it was so keep that in mind. If you're looking for something to help your posture definitely get this but as far as having you super snatched in a seemless way this isn't it at all
D**S
The sizing runs smaller than expected
I ordered a size L, but it was still too small. The sizing runs smaller than expected, so I recommend ordering a larger size.
N**.
Giving me the slimming effect I always wanted!
Love what this waist trainer has to offer. It’s not your typical shapewear; it truly functions as a trainer. I’ve struggled with lower belly fat my whole life. No matter what I tried—diet, cardio, weightlifting—nothing seemed to help (I might slim down, but no way achieved the hourglass figure nor getting rid of the fat pouch completely). This waist trainer is different. It’s firm enough to give me the slimming effect I’ve always wanted. I could wear a bodycon dress without feeling self conscious. So at least psychologically, it helps. Since I got it, I’ve been wearing it about 12 hours a day, every day (except for one day when I hand-washed it). I wear it to work, to the gym, and even during cardio and weightlifting workouts. Yes, it was a little uncomfortable at first, especially during the first week when it left some redness from pressure, but after a couple of weeks, it started to feel natural. I often forget I’m even wearing it. It also really helps with maintaining good posture. Just one month in, I can already see my curves becoming more defined. I’ve even moved on to the second row of hooks! My goal is to eventually fit into an XS. That said, I want to stress the importance of pairing this with proper diet and exercise. Yes, the trainer works—but like others have said, your lifestyle plays a huge role in the results. Use this as a tool to support your progress, not a shortcut. I bought an Small, my waist was 27” at the most narrow part. I’ll definitely continue using it—and hopefully be able to order the XS soon!
S**E
Love it
Fits so well, excellent material and very good quality
B**I
👍
👍👍👍👍
I**O
Very high quality!
I’m amazed with the quality!
R**I
Disappointed
Came so dirty and used I dont even want to touch it to take photos. Not acceptable
A**A
Cómoda y sí reduce talla
Me quedó bastante bien y sí hace buena compresión. Me ayuda a estar derecha. En la ropa de invierno no se nota. En la ropa de verano, si es holgada, no se nota. Solo batallo con los pantalones.
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