I might be a little harsh with my 3 stars, here. The brief is sexy-ish, and it kind of accomplishes its state purpose (i.e., jumped up junk in the trunk). And the build quality is decent. My issue is sizing. I've got a 32" waist, 36" upper hip (where the waist band sits) weigh an (athletic" 180lbs (9% bmi) and consider myself "fit." I ordered a size medium, and the elastic waistband is too big. I mean, ridiculously loose. I wear a size medium in most undies brands (CK, Under Armor, Hanes, etc) no prob. So, to solve the loosey goosey waistband issue, I wear a pair of bikini briefs or a jock under the briefs and fold the waistband of the RB bikini in over the top of the pair underneath to keep the RB brief from falling down. This seems to do the trick. I dunno if this is a problem for all of the RB passed bikini briefs or I just got a bum pair, but if you're on the lower end of the size chart, maybe order down a size. Cheers!
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
✨ Descubre la colección O My God, una fusión de poder, sensualidad y elegancia grecorromana diseñada para transformar tu silueta con un fit a la medida.
Nuevo bikini PADDED low-rise, ultra sexy. Con padding oculto que brinda volumen y definición al instante. Cubre por completo tu parte trasera sin la tela de más que traen los boxer briefs, boxers o trunks.
CARACTERÍSTICAS
- [PADDED Tech]®
- Bikini low-rise
- Volumen y forma definida
Composición
Composición
Cuidado
Cuidado

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.








