*FREE GROUND SHIPPING ON ALL USA DOMESTIC ORDERS OVER $50 USD
as-see-on-shark-tank-rounderbum-men-underwear-shapewear-jonathan-diersing

Our Best Sellers

AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Basic Padded Boxer Brief - Men's Shapewear

$25.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

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...
BEST SELLER
NEW
COLOR
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Basic Padded Boxer Trunk - Men's Shapewear

$25.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

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,...
BEST SELLER
NEW
COLOR
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Padded Muscle Shirt - Men's Shapewear

$49.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

👻🎃🧛🏾‍♂️ENHANCE YOUR HALLOWEEN COSTUME WITH OUR PADDED TECH! 👻🎃🧛🏾‍♂️   Introducing the latest innovation in shapewear. Our t-shirt with integrated muscle padding makes you look stronger, proportionate and athletic instantly. The 4-way...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Basic Padded Brief - Men's Shapewear

$25.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

For those who love our [PADDED Tech]®: MAKE THAT BUM ROUNDER THAN EVER! Remember those old boring “tighty-whities”? Well, here they are reinvented! Introducing the next generation of technology briefs...
BEST SELLER
NEW
COLOR
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Basic Package Trunk - Men's Shapewear

$20.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Feeling insecure about the size of your junk? Then this is the answer to your prayers. Our design will enhance the appearance of your manhood dramatically! It features a double...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Basic Lift Trunk - Men's Shapewear

$20.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Noticing your bum is not as plump or perky as it used to be? Then this the perfect underwear for you! Its hidden band design creates a push-up effect that...
BEST SELLER
AS SEEN ON SHARK TANK
QUICK VIEW

Rounderbum

Rounderbum Anatomic - Men's Shapewear

$20.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Its patent pending 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...
BEST SELLER
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Basic Package Brief - Men's Shapewear

$20.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Feeling insecure about the size of your junk? Then this is the answer to your prayers. Our design will enhance the appearance of your manhood dramatically! It features a double...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Seamless Compression Tank Top - Men's Shapewear

$45.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Rounderbum® introduces the most innovative technology in men’s shapewear. Our seamless construction provides comfortable support, slims waist while increasing muscle definition. Its physio-therapy inspired design pulls back the shoulders and...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Slim Fit Boxer Brief - Men's Shapewear

$25.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Rounderbum® introduces the most innovative technology in men’s shapewear. Our compression construction provides comfortable support, slims waist and improves body definition. Superior comfort and design in men's shapewear.    LOOK...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Seamless Compression T-Shirt - Men's Shapewear

$49.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Rounderbum® introduces the most innovative technology in men’s shapewear. Our seamless construction provides comfortable support, slims waist while increasing muscle definition. Its physio-therapy inspired design pulls back the shoulders and...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Cotton Compression Tank Top - Men's Shapewear

$35.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Cotton compression undershirt that features a high level of elasticity to firm, tone and slim the upper body. Its tapered construction is designed to remain tucked in all day long!...
BEST SELLER
AS SEEN ON SHARK TANK
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Cotton Compression T-Shirt - Men's Shapewear

$39.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Cotton compression undershirt that features a high level of elasticity to firm, tone and slim the upper body. Its tapered construction is designed to remain tucked in all day long!...
BEST SELLER
AS SEEN ON SHARK TANK
QUICK VIEW

Rounderbum

Rounderbum Anatomic - Men's Shapewear

$20.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Its patent pending 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...
BEST SELLER
Sold Out
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum Padded Muscle Shirt - Men's Shapewear

Sold Out

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

👻🎃🧛🏾‍♂️ENHANCE YOUR HALLOWEEN COSTUME WITH OUR PADDED TECH! 👻🎃🧛🏾‍♂️   Introducing the latest innovation in shapewear. Our t-shirt with integrated muscle padding makes you look stronger, proportionate and athletic instantly. The 4-way stretch...
BEST SELLER
AS SEEN ON SHARK TANK
Sold Out
QUICK VIEW

Rounderbum

Rounderbum Anatomic - Men's Shapewear

Sold Out

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Its patent pending 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...
BEST SELLER
AS SEEN ON SHARKTANK
QUICK VIEW

Rounderbum

Rounderbum New Slim Fit Boxer Brief - Men's Shapewear

$25.00 USD

NOTICE: Before you order, please note that most of the items sizes may run small.
IF you don't see all available sizes and colours, switch browsers and check again. That might do it! (most of the times).

Share this

Rounderbum® introduces the most innovative technology in men’s shapewear. Our new compression construction on this boxer brief provides comfortable support, slims waist and improves body definition. Superior comfort and design...
BEST SELLER
AS SEEN ON SHARK TANK
Shopify secure badge

SIZE CHART
men size chart