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(29 reviews) | Write a Review

Open Bust Happy Butt N°7 Double Layer

This seamless body shaper shapes your body without flattening your butt.

We've created Happy Butt N°7 double tummy layer above the knee with firm compression. The patented flexible buttocks mesh reshapes and enhances the buttocks using your own body mass. It's made with a breathable fabric and invisible under clothes with 7 targeted compression zones where you need it the most, over the shoulder bra straps, silicone lining on the leg edge portions to prevent the rolling up effect and a double gusset for ease when nature calls. This Seamless breathable body shaper can be worn daily under any clothing. 

Wear it to the gym, office or out on the town. We've designed it to be your most comfortable, everyday essential! This body shaper fits true to size. Happy Butt N°7 is super lightweight weighing only 7.5 Oz

If you are in between sizes please size up.



Double Tummy Compression


Our patented open bust shaper features:

* Double tummy panel 

* Open bust design.

* Patented flexible mesh on buttocks.

* No-Dig double panel.

* Open gusset for when nature calls.

* Over the shoulder straps.

* Full back coverage.

* 7 targeted compression zones.

* Butt lifter bands, lifts and enhances butt.

* Pressure release at the edge of leg portions.

* Upper thigh band which supports lower butt.

* Sweat-wicking.

* Four-way stretch.

* Breathable fabric.

* Seamless.

* No stitches or seams along leg openings

* Silicone lining on end of leg portions.

* Hand washed and laid flat to dry.

* Do not iron

* 84% nylon and 16% spandex.

* Made in Italy.



The (Top display) Model is wearing size SMALL pant size 6, height 5'6, Weight 135lbs. 

Please check size & style tab on menu to select your correct size.

Once you know your body measurements, consult the Size Chart below to determine which size you should purchase. If you are not sure or you are in between sizes please write your measurements, pant size, weight and height in the comments box at the time of check out or you can call 212 739 7877.

This body shaper fits true to size. 






 PATENTED US20150157060A1 US10058131B2




29 Reviews

  • 5
    Love it

    Posted by Ana on Jan 15th 2022

    Very comfortable and those the job …love it..

  • 5
    Fits amazing

    Posted by Unknown on Dec 30th 2021

    Such a good garment! I’m a 1x/2x and size down to a L for a more snug fit and it’s perfect!

  • 5
    LOVE IT!

    Posted by Karen on Dec 12th 2021

    I am in love with shopyahaira fajas. This is my 5th one. I have a few in different styles. These are the best. The flatten what the tummy and not the butt. And that is what makes it so wonderful and amazing.

  • 5

    Posted by Vanessa on Dec 6th 2021

    In love with these fajas

  • 5
    Awesome comfortable shapewear

    Posted by Nereida Huerta on Nov 20th 2021

    I loved this shape wear, it helped flatten my stomach and did not flatten out my butt. Best of all it was very comfortable and practically invisible under my tight satin dress.

  • 5
    It was great

    Posted by Mayra Ceniceros on Nov 12th 2021

    I loved it

  • 5
    Soft, tugging material

    Posted by Monica on Nov 11th 2021

    Very comfortable and easy to out on

  • 5

    Posted by Diana on Oct 26th 2021

    I’m very pleased with my purchase, faja is perfect and I can’t even feel I have it on. So comfortable. My 7 year old said mommy you got a big butt today lol.. I don’t how but this faja gives you BODY!! I ordered a size smaller, I exchanged, no problems, nice costumer service! I love it!

  • 5
    Must Have

    Posted by Edwina Villela on Sep 8th 2021

    After losing 150 lbs my body needs the extra snug fit and I found it with Yahaira’s body shapers… no boxy silhouette just natural comfortable sexy shapewear. Bonus it makes the booty look amazing I recommend this to anyone looking to get that snug but comfortable everyday shapewear.

  • 5

    Posted by Rose on Aug 27th 2021

    If I could give more stars I would. I had q tummy tuck a couple of months ago and this is perfect for my recovery. Honestly makes my body look absolutely flawless. I literally just tried it on an hour ago and came back to order more

  • 5

    Posted by Rosemary on Aug 2nd 2021

    I have been purchasing my undergarments from Yahaira for a couple of years now and there product just keeps getting better and better. It accentuates your body and has you feeling so sexy. You can’t even tell it’s under your clothing. I will continue to buy and support this brand. For many more years to come and I know they will have continued success. Thanks for making women feel and look great

  • 5

    Posted by Stevie on Jul 30th 2021

    I love this company, I got the tummy with straps and shorts length, always fits to your body, holds you in, good length where the arms straps I was able to adjust which I would like a tad bit longer since I do have a long toroso it digs in shoulder sides a bit but overall great compared to many similar I have tried. Butt looks great, it stays in place, able to still you the bathroom. Highly recommended.