Our size guide will help you find the perfect fit. If you have any questions, please use the chat icon below.
Our underwear and top sfits true to size and are fitted, however if you like your underwear/tops a little more relaxed, please size up.BOXER BRIEFS / BOXERS / TRUNKS / BRIEFS / JOCKS

Our underwear fits true to size and are fitted, however if you like your underwear a little more relaxed, please size up.
| WAIST SIZE | ||||||
S |
M |
L |
XL |
2XL |
3XL |
|
|
IN |
28-30 |
31-34 |
34-37 |
37-40 |
40-43 |
43-45 |
|
CM |
71-76 |
79-86 |
86-94 |
94-102 |
102-109 |
109-114 |
T-SHIRTS / TANK TOPS / VESTS

| CHEST SIZE | ||||||
S |
M |
L |
XL |
2XL |
3XL |
|
|
IN |
34-38 |
38-41 |
41-44 |
44-48 |
48-52 |
52-56 |
|
CM |
86-97 |
97-104 |
104-112 |
112-122 |
122-132 |
132-142 |
SHORTS / JOGGERS & PANTS
| WAIST SIZE | |||||
S |
M |
L |
XL |
XXL |
|
|
IN |
28-29 |
30-31 |
32-33 |
34-36 |
37-38 |
|
CM |
74-78 |
79-84 |
85-88 |
89-93 |
94-100 |
BRIEFS / SHORTS
| WAIST SIZE | |||||
S |
M |
L |
XL |
XXL |
|
|
IN |
28-29 |
30-31 |
32-33 |
34-36 |
37-38 |
|
CM |
74-78 |
79-84 |
85-88 |
89-93 |
94-100 |
Descripción
Descripción
Te presentamos un corte único y ultra sexy. Fusionamos los beneficios y la libertad que te da un Jock Strap con el estilo de una tanga. Esta prenda cuenta con la exclusiva Tecnología de Levantamiento Rounderbum, que levanta y define los glúteos naturalmente. ¡Un nuevo corte que tienes que probar!
CARACTERÍSTICAS
- Tecnología [DUAL Tech]®
- Tecnología [LIFT Tech]® + Tecnología [PACKAGE Tech]®
- Realzador de paquete
- Efecto push-up
- No necesita relleno
- Invisible bajo la ropa
Composición
Composición
Cuidado
Cuidado
- Reviews
- Questions
- pouch
- lift
- pair
- love
- others
- material
- place
- colors
- thong
- leg straps
Fantastic
Have bought this before they are fantastic
Rounderbum USA
Thank you Matt! Hope you enjoy them a lot :)
Love them to bits
I bought a pair a year ago and fell in love with them
Rounderbum USA
Dear Matt Thank you for sharing your comments :D Hope you enjoy them a lot!
Endgame underwear.
Now I have tried a lot of underwear from a lot of brands--this is a pair that is truly top tier. The "lift" feature works pretty well, definitely the best Rounderbum product making my bum rounder that I've tried. The difference is small but noticeable with pants that are more fitted in the butt, and leggings are just *mwah. The ball pouch is pretty good, same style as Andrew Christian's SHOW-IT Pouch, but slightly stricter with a narrower ******* hole, which makes for better support and a slightly superior bulge, in exchange for a little comfort. Speaking of which, this is a very supportive pair of underwear--I've worn them jogging, hiking, climbing, etc. no problem, plus they're super breathable. Material feels thick and high quality, and construction is great too. Being a jock thong, the back is leaps and bounds more comfortable than a regular thong while making no compromises in terms of sexiness. My only real complaint is that they do run slightly small--I normally wear a small, and the small does still fit me, but I would size up if you're on the larger end of your size. Besides that, though, this really is a thoroughly awesome set, cannot recommend enough.
Rounderbum USA
Dear Chaim We appreciate your feedback and are delighted to know you are enjoying the enjoyed Lift Jock Thong. Your satisfaction is our top priority, as a kindly recommendation please base your size on our size chart so you don't have any problems with size next time :) Thank you!
Love these
Glad I sized up. Usually wear small. Went up to Medium. Pouch has a very comfy ‘lift’. Very comfortable. Wore all day long without issue. Highly recommend.
Rounderbum USA
Thank you Sam, we are happy to know the Lift Jock Thong met your expectations ;)
Our Techs
FAQ about shapewear
Do men use shapewear?
Do men use shapewear?
Men’s shapewear is on the rise — and for good reason.
More guys are asking, “Why should only women have these options?” From all walks of life, men are shopping shapewear to look and feel their best. Whether it’s smoothing love handles, lifting your butt with padded underwear, improving posture, or recovering post-surgery — men’s shapewear does it all. And let’s be honest — who doesn’t want a more toned, confident look?
Is it good to use shapewear?
Is it good to use shapewear?
There’s nothing wrong with wanting to feel your best — and men’s shapewear can help.
It’s great for improving posture, supporting post-surgery recovery, and boosting confidence for special events like weddings. Whether you’re looking for a more lifted look or just want extra comfort during long days, our men’s padded underwear delivers both support and style.
What does shapewear do?
What does shapewear do?
At Rounderbum, our goal is to help men everywhere feel great with shapewear.
But it does more than just boost confidence — our padded briefs add lift and volume to your butt, helping clothes fit better and adding comfort during long flights or desk time. Our compression shirts aren’t just for shaping your torso — they support better posture and are a great option for post-surgical recovery too. Shapewear isn’t just about looks — it’s about feeling good all around.
![[DUAL TECH] Lift Jock Thong Black](http://rounderbum.com/cdn/shop/products/JC07SE-BLACK-1.jpg?v=1762199865&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/products/JC07SE-BLACK-2.jpg?v=1745862788&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/products/JC07SE-BLACK-3.jpg?v=1745862789&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/products/JC07SE-BLACK-4.jpg?v=1745862789&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/products/JC07SE-BLACK-5.jpg?v=1745862789&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/products/JC07SE-BLACK-6.jpg?v=1745862789&width=1214)
![[DUAL TECH] Lift Jock Thong Heather-Charcoal](http://rounderbum.com/cdn/shop/files/JC07SE-CHARCOAL-1.jpg?v=1776350039&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/files/JC07SE-CHARCOAL-2.jpg?v=1776350039&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/files/JC07SE-CHARCOAL-3.jpg?v=1776350039&width=1214)
![[DUAL TECH] Lift Jock Thong](http://rounderbum.com/cdn/shop/files/JC07SE-CHARCOAL-4.jpg?v=1776350039&width=1214)
![[DUAL TECH] Lift Jock Thong - Customer Photo From Carlo A.](https://cdn.stamped.io/uploads/photos/27590_3963330527255_c974350b_7ad9_4aa5_8527_3ad9e9d750ac.jpg?v=)
![[DUAL TECH] Lift Jock Thong - Customer Photo From Alfonso R.](https://cdn.stamped.io/uploads/photos/27590_3963330527255_e23026db_bbf1_4d97_9fa6_304b1c5887ea.jpg?v=)
![[DUAL TECH] Lift Jock Thong - Customer Photo From Luis L.](https://cdn.stamped.io/uploads/photos/27590_3963330527255_dfdded4b_5e79_4924_a54e_3509d80990da.jpg?v=)
![[DUAL TECH] Lift Jock Thong - Customer Photo From Alan R.](https://cdn.stamped.io/uploads/photos/27590_3963330527255_6878b3af_7c62_4704_a584_eb50c2c27723.jpg?v=)
![[DUAL TECH] Lift Jock Thong - Customer Photo From Warren Stepler](https://cdn.stamped.io/uploads/photos/27590_3963330527255_b6168d16_458c_4ffe_aa44_75f1923312a3.jpg?v=)
