The Spanx OnCore open-bust body in black, size M, is a corrective shapewear piece designed for women. It features power fabric that provides strong abdominal compression and waist shaping, made from a blend of firm yet lightweight materials to ensure comfort. The abdominal and side panels deliver secure compression without a constricting feel. This body is worn with your own bra, as it is open-bust, and includes adjustable shoulder straps for a customized fit. The design avoids flattening the buttocks by excluding correction in that area, and it has a hook-and-eye closure at the bottom for easy bathroom access. Constructed for durability and reliability, it supports a smooth silhouette in everyday wear.
The Spanx OnCore open-bust body in black, size M, is a corrective shapewear piece designed for women. It features power fabric that provides strong abdominal compression and waist shaping, made from a blend of firm yet lightweight materials to ensure comfort. The abdominal and side panels deliver secure compression without a constricting feel. This body is worn with your own bra, as it is open-bust, and includes adjustable shoulder straps for a customized fit. The design avoids flattening the buttocks by excluding correction in that area, and it has a hook-and-eye closure at the bottom for easy bathroom access. Constructed for durability and reliability, it supports a smooth silhouette in everyday wear.
in 1 offers
The lowest price for Spanx Women's Oncore Open-Bust Bodysuit - Black - Size 1x (14-16) right now is $189.95 at Illusions Lingerie.
The all-time low was $120.93 on 18 Dec 2025 — today's price is 57% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 10 May 2026.
Spanx Women's Oncore Open-Bust Bodysuit - Black - Size 1x (14-16)
The Spanx OnCore open-bust body in black, size M, is a corrective shapewear piece designed for women. It features power fabric that provides strong abdominal compression and waist shaping, made from a blend of firm yet lightweight materials to ensure comfort. The abdominal and side panels deliver secure compression without a constricting feel. This body is worn with your own bra, as it is open-bust, and includes adjustable shoulder straps for a customized fit. The design avoids flattening the buttocks by excluding correction in that area, and it has a hook-and-eye closure at the bottom for easy bathroom access. Constructed for durability and reliability, it supports a smooth silhouette in everyday wear.
The Spanx OnCore open-bust body in black, size M, is a corrective shapewear piece designed for women. It features power fabric that provides strong abdominal compression and waist shaping, made from a blend of firm yet lightweight materials to ensure comfort. The abdominal and side panels deliver secure compression without a constricting feel. This body is worn with your own bra, as it is open-bust, and includes adjustable shoulder straps for a customized fit. The design avoids flattening the buttocks by excluding correction in that area, and it has a hook-and-eye closure at the bottom for easy bathroom access. Constructed for durability and reliability, it supports a smooth silhouette in everyday wear.
Last updated at 10/05/2026 22:11:00
OnCore Open-Bust Panty Bodysuit | Spanx | Illusions Lingerie Black / 16+ / 1XL
Free delivery between 15–25 May
originally posted on myer.com.au
Very comfortable way to smooth bumps & lumps beautifully. I'm a size 8 and Size S fitted perfectly (smaller would have been preferable but was not available). Wore it under a thick (lined) linen dress on a 35 degree day, for an outdoor function. It was surprisingly cool, as the material (although synthetic) breathes. Highly recommended.
originally posted on nordstrom.com
I needed a shaper for long term daily wear. I tried a lot of them.For reference, my measurements are, under bust: 31”, natural waist: 29-30”, lower waist: 34”, hips: 38”. I’m a medium in most tops and a size 4-6 in most pants. Height 5’1, weight 132.I tried medium and small, and kept the small. The medium would have been great for regular wear for most people. It gave nice shaping under clothing. When I first saw the small, I thought no way I was getting into it! When I wanted more compression than the medium, I squeezed myself into the small. The small is a bit harder to get on, but really gives the stronger shaping I need. I wear it all day on a daily basis and I love the support it gives.Straps are a bit thin, but workable. They don’t rub my underarm area. ... MoreI needed a shaper for long term daily wear. I tried a lot of them.For reference, my measurements are, under bust: 31”, natural waist: 29-30”, lower waist: 34”, hips: 38”. I’m a medium in most tops and a size 4-6 in most pants. Height 5’1, weight 132.I tried medium and small, and kept the small. The medium would have been great for regular wear for most people. It gave nice shaping under clothing. When I first saw the small, I thought no way I was getting into it! When I wanted more compression than the medium, I squeezed myself into the small. The small is a bit harder to get on, but really gives the stronger shaping I need. I wear it all day on a daily basis and I love the support it gives.Straps are a bit thin, but workable. They don’t rub my underarm area. The body is seamless, a big plus for me. The body gives nice support from under bust to just above the hips. It does not squeeze the hips. The bottom has hook and eye closure, another huge plus for me - with daily wear, it makes bathroom breaks a breeze.
originally posted on marksandspencer.com
The firm control open bust body suit is ideal, keeps things you don’t want exposed under control and gives an amazing body shape. It’s neutral colour means it works under any clothing.It is certainly worth the money paid
| Variant | |
| size | 16+ / 1XL |
| color | Black |
OnCore Open-Bust Panty Bodysuit | Spanx | Illusions Lingerie Black / 16+ / 1XL
Free delivery between 15–25 May
Very comfortable way to smooth bumps & lumps beautifully. I'm a size 8 and Size S fitted perfectly (smaller would have been preferable but was not available). Wore it under a thick (lined) linen dress on a 35 degree day, for an outdoor function. It was surprisingly cool, as the material (although synthetic) breathes. Highly recommended.
I needed a shaper for long term daily wear. I tried a lot of them.For reference, my measurements are, under bust: 31”, natural waist: 29-30”, lower waist: 34”, hips: 38”. I’m a medium in most tops and a size 4-6 in most pants. Height 5’1, weight 132.I tried medium and small, and kept the small. The medium would have been great for regular wear for most people. It gave nice shaping under clothing. When I first saw the small, I thought no way I was getting into it! When I wanted more compression than the medium, I squeezed myself into the small. The small is a bit harder to get on, but really gives the stronger shaping I need. I wear it all day on a daily basis and I love the support it gives.Straps are a bit thin, but workable. They don’t rub my underarm area. ... MoreI needed a shaper for long term daily wear. I tried a lot of them.For reference, my measurements are, under bust: 31”, natural waist: 29-30”, lower waist: 34”, hips: 38”. I’m a medium in most tops and a size 4-6 in most pants. Height 5’1, weight 132.I tried medium and small, and kept the small. The medium would have been great for regular wear for most people. It gave nice shaping under clothing. When I first saw the small, I thought no way I was getting into it! When I wanted more compression than the medium, I squeezed myself into the small. The small is a bit harder to get on, but really gives the stronger shaping I need. I wear it all day on a daily basis and I love the support it gives.Straps are a bit thin, but workable. They don’t rub my underarm area. The body is seamless, a big plus for me. The body gives nice support from under bust to just above the hips. It does not squeeze the hips. The bottom has hook and eye closure, another huge plus for me - with daily wear, it makes bathroom breaks a breeze.
The firm control open bust body suit is ideal, keeps things you don’t want exposed under control and gives an amazing body shape. It’s neutral colour means it works under any clothing.It is certainly worth the money paid
It's good quality shapewear. It is sturdy but not uncomfortable. I have worn shapewear which are sturdier than this one but then they are not very comfortable. So it's a choice.Overall I am happy with my purchase. Serves the purpose for regular shapewear.
Was not as tight as I hoped. I got an XS and it was lacking some of the tightness I was hoping for. That might be great for some of you but I’d say go down a size if you want it a little more compressed. Also be aware that it’s not uniform tightness. It’s obviously an onCORE product, but I just wanted to highlight that again.
This was my first entry into higher-end shapewear, and it's not exactly what I expected. Having grown up hearing about Spanx being the Queen of shapewear, and reading that this bodysuit was level 3, I expected a bit more hold and structure and some really intense sculpting, but it was a bit more relaxed than I expected. The cons: I wish there was just a bit more heavy duty structure in the stomach area. I also wish the straps were a bit wider. The pros: EXTREMELY comfortable. I've used cheaper bodysuits before and many were painful and unwearable after a few hours. This shaper is very comfortable. The fabric is soft and smooth, and there are no hard bits that will be digging into your skin. Overall it's a pretty great shaper. Will it work miracles? Make your stomach ... MoreThis was my first entry into higher-end shapewear, and it's not exactly what I expected. Having grown up hearing about Spanx being the Queen of shapewear, and reading that this bodysuit was level 3, I expected a bit more hold and structure and some really intense sculpting, but it was a bit more relaxed than I expected. The cons: I wish there was just a bit more heavy duty structure in the stomach area. I also wish the straps were a bit wider. The pros: EXTREMELY comfortable. I've used cheaper bodysuits before and many were painful and unwearable after a few hours. This shaper is very comfortable. The fabric is soft and smooth, and there are no hard bits that will be digging into your skin. Overall it's a pretty great shaper. Will it work miracles? Make your stomach disappear? No. But it will smooth things out, make your posture a bit better, and make your clothes that you already fit into hang nicely. I'll probably be buying another in nude. It think it will be a great everyday piece for me. and I'll probably pick up something more heavy-duty for special occasions.
I won't say it does nothing, but it's minimal. A snug tank top would give the same effect as this shaper for a fraction of the cost. Also, the strap and bust are oddly positioned. They don't lay in line with any of my bras, so I have a bizarre double strap situation. The issue may be due to my height and short torso. I'm 5'3, ordered a large and it's OK at best.
I needed a new shaper to smooth out my middle. Bought a new dress for special occasion, a slim sheath. I have a panty type shaper that smooths out my tummy but with the new dress it shows bulges above the shaper at waist.I am small (size 4 petite) and I'm slim through the hips. I have a bra that fits well with dress. The open front of the new shaper works well with that bra. I like this shaper because it opened easily with hooks for using bathroom. I bought another, which I returned, that covered thighs. It did smooth my middle well but it had a gusset opening for bathroom. I could not see how this would work for me. Other reviews expressed same concern.Shaper works well to smooth our tummy and waist. Easily unhooks for using the bathroom. Low enough in back to ... MoreI needed a new shaper to smooth out my middle. Bought a new dress for special occasion, a slim sheath. I have a panty type shaper that smooths out my tummy but with the new dress it shows bulges above the shaper at waist.I am small (size 4 petite) and I'm slim through the hips. I have a bra that fits well with dress. The open front of the new shaper works well with that bra. I like this shaper because it opened easily with hooks for using bathroom. I bought another, which I returned, that covered thighs. It did smooth my middle well but it had a gusset opening for bathroom. I could not see how this would work for me. Other reviews expressed same concern.Shaper works well to smooth our tummy and waist. Easily unhooks for using the bathroom. Low enough in back to not show. A regular bra back does not show with my dress.
The material is lightweight, comfortable, and easy to put on. It has two snaps that are comfortable, and easily unsnap or snap. It will surprise you because it hides areas that need to be contoured and truly, truly accessorizes your body shape. You will not notice you're wearing it, it is just that comfortable. I wear mine to work and don't realize I am wearing it because it is that comfortable with no restrictions in breathing or pinching when you move. The material is washable and does the job.
I have never purchased a SPANX product, or a body shaping undergarment before. That being said, I chose this because it had a snap crotch (you can use the bathroom without completely getting undressed with the biker short style---how do people wear those?) and I prefer to wear my own bras.This is the strongest of the three options SPANX gives you. Although I took it out of the tiny package and wondered how this thing would fit over my wrist, let alone my thighs. The effort of squeezing into it is worth it. I felt like Wonder Woman (partly because I was sweating after getting it over my thighs) and a sleek baby seal in one. Snaps on the crotch are easy to open and close. I did notice with the straps that if you are wearing a sleeveless dress, they do swing out ... MoreI have never purchased a SPANX product, or a body shaping undergarment before. That being said, I chose this because it had a snap crotch (you can use the bathroom without completely getting undressed with the biker short style---how do people wear those?) and I prefer to wear my own bras.This is the strongest of the three options SPANX gives you. Although I took it out of the tiny package and wondered how this thing would fit over my wrist, let alone my thighs. The effort of squeezing into it is worth it. I felt like Wonder Woman (partly because I was sweating after getting it over my thighs) and a sleek baby seal in one. Snaps on the crotch are easy to open and close. I did notice with the straps that if you are wearing a sleeveless dress, they do swing out wider than my bra, but I have those straps inside my dress to clip in bra straps and keep them from showing.GOOD LUCK with your attempt on getting it on. But like most things in life, those you put the effort in are worth it.
| Variant | |
| size | 16+ / 1XL |
| color | Black |
