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 |
Description
Description
WHERE IT ALL STARTED.
Our original design gives more gluteal volume and definition, adapting perfectly to every body shape. Its design is practical, discreet and comfortable. It can be used as an everyday underwear, for extreme sports or great for sitting down for long periods of time.
Feel great in your own skin!
Superior comfort and design in men's shapewear.
FEATURES
- [PADDED Tech]®
- More bum instantly
- Long inseam boxer
- Round Bum Effect
- Removable padding
Fabric
Fabric
Care Instructions
Care Instructions
*Exclusive patented design: USD876,750S
- Opiniones
- Preguntas
Bóxer cómodos y resaltan la figura
Este y el modelo cried ha sido genial
Rounderbum MÉXICO
Disfrútalos mucho Alfonso! Saludos :)
Bueno
Pues al final si era lo que esperaba te da una bonita apariencia y te da más seguridad
Rounderbum MÉXICO
Mil gracias por tus comentarios Thomas! Disfrútalos al máximo :D
Love them
Great pair of briefs. This is my 7th. Feel great
Rounderbum MÉXICO
Dear Alfredo Thank you so much for sharing your experience with us, hope you enjoy a lot your products :)
Gran comodidad y ajuste perfecto
Excelente producto, bastante cómodo y con un ajuste perfecto...
Rounderbum MÉXICO
Esperamos los disfrutes mucho Jesus! Saludos :)
more padding
i wish your padding was thicker..but still great to wear..
Rounderbum MÉXICO
Hi Thomas Thank you for your comments, we appreciate you took the time to leave us your review. To get extra thick pads we kindly invite you to take a look at our extra thick replacement pads found as separate accessories :)
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.



























