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🖤 Undie-tectable: Because your confidence deserves to be seamless.
The Spanx Undie-tectable Brief is a lightweight, high-stretch thong shapewear designed for subtle tummy smoothing and core control. Featuring a smoothing waistband and elastic-free edges, it offers a no visible panty line look with breathable, quick-drying fabric and a cotton gusset. Ideal for professional millennials seeking comfort and a flawless silhouette under any outfit.









| ASIN | B00QGHETE4 |
| Age Range Description | Adult |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | 41,003 in Fashion ( See Top 100 in Fashion ) 449 in Women's Control Knickers |
| Bottom Style | Thongs |
| Brand Name | Spanx |
| Care instructions | Machine Wash |
| Colour | Very Black |
| Country Of Origin | Vietnam |
| Country of origin | Vietnam |
| Customer Reviews | 3.6 out of 5 stars 778 Reviews |
| Fabric Type | 77% Nylon, 23% Elastane. Gusset: 100% Cotton. |
| Fit Type | regular |
| Fit to Size Sentiment | Runs Slightly Small |
| Garment Size Country | Great Britain |
| Global Trade Identification Number | 00843953271109 |
| Item Type Name | Thong |
| Item Weight | 0.06 Pounds |
| Manufacturer | SPANX |
| Manufacturer Part Number | SP0115 |
| Material Type | Nylon |
| Material composition | 78% Polyamide, 22% Elastane |
| Model Number | SP0115 |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | High |
| Season and Collection Year | Spring -2,000 |
| Size | M |
| Special Features | smoothing |
| Style Name | Thong |
| UPC | 843953271109 |
| Unit Count | 1.0 count |
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!!
B**E
Mummy tummy heaven!
Arrived today and I’m surprised at how effective they are! I’m a UK size 10 (US 6) and have a bit of a mummy tummy, so went for the 36. I’ve tried other shapewear and it always seems to concentrate on the upper part of the tummy, pushing everything down. But this targets the lower tummy perfectly! No muffin top. And the thong aspect really boosts my (usually not that impressive) bum. Perfect for leggings, my hubby’s not been able to keep his hands off me all afternoon! Defo buying more!
S**E
Repeat purchase but smaller fit !!!
These were a repeat buy (from 2 pairs previously purchased ) so I bought 4 pairs more in black and cream and after opening up the packages and packing them for my holiday … Same size same make … but they felt a lot smaller than the original pairs I bought ! Uncomfortably too small sadly so I’m not sure if I’m able to get a refund for the 4 pairs tried on all very uncomfortably !! Sorry but true !
N**S
good fit
not the strongest of the Spanx range, the support is medium I'd say. Great for use under trousers.
E**Y
Not like previous Spanx
Comfortable but not like previous Spanx where i’ve literally needed a shoe horn to get them on, fabric softer & defo not tighter.
P**E
Smaller than expected
Unfortunately I found these very small for the size. I am a size 10 to 12 and found these didn't work for me at all.
A**H
Deceptively comfortable
I don't usually like thongs but I love these. Spanx are my new go to brand as they are so flattering holding in my tummy with the high waist.
J**A
Great product
Great product. Does exactly as described. I will be ordering more. Excellent delivery service. On time, when promised. Thank you.
S**R
Returned it
Felt like I was wearing a suitcase..to thick
A**E
Great Product
I have been struggling to find reasonably priced shapewear that fit me as a size 6 as most I had tried prior to these were too big and were not doing anything... but these were actually amazing and makes you feel supported!
G**E
Aucun maintien en taille S
Tissu très fin qui n'assure aucun maintien. Je fais un 38 et j'ai commandé une taille S pour être sûre d'être bien maintenu malgré cela zéro résultat. Par contre cela ne taille pas petit contrairement à ce que j'ai pu lire dans un commentaire. Impossible de faire un retour car considéré comme un produit d'hygiène.
D**D
Perfect balance of comfort and shaping
This is my first time trying underwear from Spanx, and I'm seriously impressed. Made ofa soft, durable stretch material, these panties are super comfortable to wear all day long. The flat seams are a game changer - they make them invisible under clothing, so you can confidently rock any outfit without worrying about visible panty lines.
A**A
Super Qualität
Der Taillenslip ist sehr schön verarbeitet und passt wie beschrieben.
Trustpilot
2 weeks ago
1 month ago