

✨ Slip into smooth, breathable confidence — undie-tectable perfection! ✨
The Spanx Women's Undie-Tectable Trouser is a lightweight, breathable thong designed with a bonded waistband and elastic-free edges to eliminate visible panty lines. Offering light, all-day shaping support, it targets the tummy and bottom for a smooth silhouette. Made with a quick-drying cotton gusset and crafted from 78% polyamide and 22% elastane, this thong combines comfort with discreet shaping, perfect for professional women seeking confidence under any outfit.









| Care instructions | Machine wash cold, gentle cycle. Use non-chlorine bleach when need. Lay flat to dry. Do not Iron. |
| Country of origin | Vietnam |
| Material composition | 78% Polyamide, 22% Elastane |
O**K
Comfortable, lightweight, smoothing
Lets start with what I was looking for, a lightweight high leg pair of undies to smooth my tummy under a skirt for an evening out, in the middle of a hot summer, where I would be eating. Did they deliver? 100% yes. Sizing, I followed the size chart and chose XL (size 20) and although when I unpacked them they looked a little small they fit perfectly and were very comfortable. Zero roll down, they stayed in place and were easy to replace when visiting the bathroom. The thong was comfortable and I found the overall quality to be good. Now, lets get honest for a min Ladies. No piece of elasticated fabric is going to turn a size 20 into a size 12! However, if you are looking for something Lightweight, fuss free, to give you that little bit of extra confidence and disguise those peskie tummy rolls I would recommend these. They performed the function I was expecting and the colour (Cafe Au Lait) worked well with no shine through under a white skirt. I paid £14.75 for these on offer and thought that was a fair price.
M**E
Think mine are faulty
They fit well but the glue at the side has come apart after only 3 wears. Will be sending back.
I**E
feel very comfortable for a g-string if you see what I mean
Undetectable, feel very comfortable for a g-string if you see what I mean :) so I was impressed on that. The band fits high (but I am short torso) so looks great with all my high waisted trousers. The material is nice and thick so will retain its shape well after many washes. The sizing though is super small. I had to exchange xs for small somewhere else.
B**M
Smoothing Not Shaping
These were great when first on and then as they fit to my body they just became big seamless pants that smoothed things down, not much shaping going on at all to be honest, disappointing for the price.
A**R
Lovely
My favourite suck me ins that I’ve bought
C**S
Good
Good product, do their job but don't expect them to hold as much as other spanx. They give you just that little help, exactly what I needed.
B**D
Top rolls down
Not a good fit on me. I’m petite size 8-10 and wanted to flatten my mum-tum. These did but created a mini muffin at the top, cutting me off just above the belly button. And when I sat down the top rolled down. Not streamline for me. Attractive looking though, as shapewear pants go. Just not for me. I found the Werena pair far better, they come higher and don’t roll. (And much cheaper!)
H**E
Looked minuscule but stretched!
I LOVE them! I ordered a proper rib-to-thigh one but I’ve never worn it. It’s such a struggle just at home and to wear it out I feel would be a nightmare - trying to get out of it in time for a wee! These however are great. I gained weight in lockdown and my hips are out of control. These just pull them in and smooth over my tummy to make a tight dress/ skirt look better. One thing I’ve noticed is that if I sit down in them too long they make my buttcrack sore.. but that could just be me lol! Am gonna get some more. Am a uk10 with uk12 hips/ bum and I ordered a small. They stretch!!
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