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✨ Undie-tectable: Because your confidence should never show lines!
The Spanx Undie-tectable Brief is a breathable, quick-drying shapewear thong designed with a smoothing waistband and elastic-free edges to provide level 1 core control and a completely smooth, no visible panty line look. Fits slightly small, so sizing up is recommended for the perfect fit.









| Asin | B00V3CL27Y |
| Best Sellers Rank | 321 in Women's Control Knickers |
| Date First Available | 8 Aug. 2005 |
| Department | Women's |
| Item Model Number | SP0215 |
| Manufacturer | SPANX |
| Product Dimensions | 22.86 x 2.54 x 15.24 cm; 34.02 g |
User
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!!
User
Works well!
Fit well, holds stomach in nicely
User
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 !
User
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.
User
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.
User
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!
User
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.
User
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.
User
Returned it
Felt like I was wearing a suitcase..to thick
User
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!
User
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.
User
Sitzt super
Passt perfekt und macht das weg was es verspricht
User
Happily surprised!
I was thinking it wasn’t going to do much of a difference because of the material but I was pleasantly surprised! I got my normal size of XL and it wasn’t tight at all and felt very comfortable. It held in my remaining c-section belly so nicely and made a very big difference. It also didn’t cut in weird on the butt or the hips. I will definitely be ordering some in other colors.
Trustpilot
4 days ago
1 month ago