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
Our innovative Techs® and best-sellers just got an upgrade and a new color - Elemental Blue 🔵 A serene and sophisticated shade, that evoques a sense of calmness, unparalleled comfort and confidence. Tailored from the finest-quality cotton and featuring superb elasticity to enhance natural attractiveness while ensuring breathability, flexibility, and cutting-edge design. Upgrade your confidence with color and find your favorite Tech®.
Its patented design is anatomically correct so your crown jewels can hang comfortably. The V-shaped seam defines your gluteus to look more maximus than ever. It feels so natural that you will forget you are wearing anything at all. This is the underwear you never knew you needed!
Superior comfort and design in men's shapewear.
FEATURES
- [ANATOMIC Tech]®
- Free fall pouch
- Contours buttocks
- Curvy effect
- Undetectable to the eye
Fabric
Fabric
Care Instructions
Care Instructions
*Exclusive patented design: USD874,090S
- Opiniones
- Preguntas
Excelente
Es el color que más me gusta, se ajusta bien al cuerpo y es una buena opción de compra
Rounderbum MÉXICO
Tambien es uno de nuestros colores favoritos, esperamos los disfrutes mucho!
Fits great
These trunk are great. Fits great and very comfortable. The style and the color is great as well. Very happy with my items. Oh by the way, my item arrived as scheduled.
Rounderbum MÉXICO
Thanks so much for sharing your 5 stars review with us, we are glad to know you had a great experience :)
Elegante
muy cómodo, luce muy elegante.
Rounderbum MÉXICO
Gracias por tus comentarios Valentin! Saludos ;)
I love the snug and form fitting feel of these! The color is really nice to look at too.
Rounderbum MÉXICO
One of our favorite colors too ;) Enjoy it!
Excelente
Me encantaron, son super cómodos y me quedaron super bien !!!
Rounderbum MÉXICO
Gracias Cesar, Nos alegra saber que tuviste una excelente experiencia de compra ¡Esperamos volver a saber de ti muy pronto! :)
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.






