What Rounderbum does

Rounderbum LLC is a privately held, direct-to-consumer men's shapewear and underwear brand headquartered in West Hollywood, California. The company sells body-enhancing apparel to individual male consumers through its Shopify-powered website rounderbum.com, offering products at price points of $27–$89 with bundle discounts (buy 3 get 20% off, buy 5 get 30% off), seasonal clearance (up to 50% off), and free US shipping on orders of $75 or more. A secondary wholesale program distributes to specialty retailers. The brand is known for its appearance on ABC's Shark Tank with an endorsement from Kevin O'Leary, and has received press coverage from CNBC, the New York Post, and the New York Times.

Rounderbum's product portfolio is organized around seven proprietary technology platforms: Padded Tech (seamless padding for butt enhancement), Anatomic Tech (V-shaped seam for natural shaping), Package Tech (front pouch enhancement), Lift Tech (butt lifting), Dual Tech (combined lift and package), Compression Tech (torso shaping and posture support), and Zero Tech (sheer nylon). The catalog spans approximately 50 SKUs across underwear (briefs, trunks, boxers, boxer briefs, jockstraps), tops (compression shirts, tanks, padded muscle shirts), swimwear, and loungewear, segmented into 12+ themed collections including Sexy Nights, Army, Waveform, Soccer Edition, O MY GOD, Varsity, Pride, Stealth, Basics, Workout, and HERO. Each collection targets distinct lifestyle, occasion, or identity-driven purchase occasions.

The business operates as a single-brand DTC e-commerce company with no institutional investors, no parent company, no subsidiaries, and no disclosed management team or headcount. Marketing relies on organic social media (Facebook, Instagram, YouTube, Twitter), influencer and celebrity endorsements, email newsletters, content/blog SEO, and earned media from the Shark Tank appearance. There are no disclosed funding rounds, M&A activity, regulatory actions, or leadership changes in the available data.

Name

Rounderbum

Legal name

Rounderbum LLC

Website

https://rounderbum.com

Company type

Private

Founded year

2017

Operating status

Operating

Short description

Rounderbum LLC is a privately held, direct-to-consumer men's shapewear and underwear brand selling body-enhancing apparel (underwear, compression tops, swimwear, loungewear) through a Shopify storefront to individual male consumers, anchored by Shark Tank visibility and seven proprietary technology platforms.

Ownership category

akta.pro rank

Product category

Men's Shapewear

NAICS

Apparel Manufacturing (315), Apparel Accessories and Other Apparel Manufacturing (31599)

SIC

Men's & Boys' Furnishgs, Work Clothg, & Allied Garments (2320), Apparel & Other Finishd Prods Of Fabrics & Similar Matl (2300)

akta.pro primary industry

Shapewear & Body Contouring (CRAAAIAC)

akta.pro secondary industries

Intimates, Lingerie, Swimwear & Sleepwear Brands (CRAAAAAF), Loungewear (Home Comfort Basics) (CRAAAIAF)

Keywords

• Men's shapewear
• Body enhancing underwear
• Compression apparel
• Padded undergarments
• Men's intimate apparel

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Marketing or Sales, Operations, Personnel, Technology or R&D, Infrastructure

Revenue model

1. Direct Product Sales: Rounderbum generates revenue through direct-to-consumer sales of men's shapewear, underwear, tops, and swimwear. Products are sold at various price points ($27-$89 for individual items) with occasional sales and bulk discounts (e.g., buy 3 get 20% off, buy 5 get 30% off).

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Rounderbum designs and sells men's body-enhancing shapewear, underwear, compression tops, and swimwear through a direct-to-consumer e-commerce storefront. The company offers products built around proprietary enhancement technologies (Padded, Anatomic, Package, Lift, Dual, Compression, and Zero Tech) that provide buttock lift, front pouch enhancement, torso shaping, and posture support for male consumers.

Product overview

Rounderbum is a men's shapewear and underwear brand specializing in body-enhancing apparel. The company offers a comprehensive portfolio of products organized around proprietary technologies including Padded Tech (seamless padding for natural-looking butt enhancement), Anatomic Tech (V-shaped seam design for natural shaping), Package Tech (front pouch enhancement), Lift Tech (butt lifting), Dual Tech (combined lift and package), Compression Tech (torso shaping), and Zero Tech (sheer lightweight fabric). Their product lines span underwear (briefs, trunks, boxers, boxer briefs, jockstraps), tops (compression shirts, tanks, muscle shirts), swimwear, and shapewear across multiple themed collections including Sexy Nights, Army, Waveform, Soccer Edition, O MY GOD, HERO, Pride, Varsity, Stealth, Basics, Workout, and Loungewear. The brand is known for appearing on Shark Tank and has been featured in major media outlets including CNBC and the New York Times.

Differentiator

Problem solved

Functional benefit

Products and services

• Basic Padded Boxer Trunk Men's padded boxer trunk underwear designed to enhance and lift the buttocks area using seamless Padded Tech, available in multiple colors.
• Basic Padded Boxer Brief Men's padded boxer brief with enhanced cushioning for a lifted butt appearance using Padded Tech.
• Basic Padded Brief Men's padded brief offering butt enhancement and shaping using Padded Tech.
• Anatomic Mini Trunk Men's underwear with anatomical V-shaped seam design that naturally shapes and supports the front pouch area without padding.
• Basic Slim Fit Padded Trunk Slim fit padded trunk offering both butt and package enhancement.
• Padded Muscle Shirt Padded top designed to enhance chest and shoulder appearance for a more muscular silhouette.
• Seamless Compression Tank Top Compression tank top designed to shape the torso and support posture using Compression Tech.
• Seamless Compression T-Shirt Seamless compression t-shirt for torso shaping and posture support.
• Xtreme Compression Shirt Maximum compression shirt for intense torso shaping and sweat enhancement during workouts.
• WORKOUT Compression Sweat Vest Sweat-enhancing compression vest designed for workouts and fitness activities.
• H2O WAVEFORM Padded + Package Swim Brief Swim brief combining Padded and Package enhancement technologies for summer beachwear.
• O MY GOD SUMMER EDITION Padded Bikini Padded bikini from the O MY GOD summer collection with bold colors.
• ARMY Lift Trunk 5-Pack Value pack of lift-enhancing trunks in Army camouflage colors.
• ARMY Padded Boxer Brief + Smart Package Cup Padded boxer brief with integrated protective package cup from the Army collection.
• Deep V-Neck T-Shirt 2-Pack Value pack of deep v-neck compression t-shirts.
• VARSITY Padded Crop Top Padded crop top from the Varsity collection with collegiate styling.
• Essentials Bamboo T-Shirt Crew Neck Bamboo fabric crew neck t-shirt from the Essentials line.
• Seamless Compression Long Sleeve Shirt Long sleeve compression shirt with seamless construction.
• LIGHT Compression Tank Top Lightweight compression tank top for less intensive everyday shaping.
• Sport Long Sleeve Shirt Long sleeve sport shirt designed for active wear.

Quantifiable outcome

• 358 reviews on Basic Padded Boxer Trunk, 483 reviews on Basic Padded Boxer Brief - indicating strong customer engagement
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• ShopifycoreTechnology or IntegrationShopify powers Rounderbum's e-commerce platform, providing the underlying technology for their online storefront, payment processing, order management, and customer data analytics. This is a critical operational partnership for their direct-to-consumer business model.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Direct peers

• MeUndies: MeUndies is a DTC men's and women's underwear and basics brand with subscription model and frequent themed/seasonal collections. It is comparable to Rounderbum because both operate direct-to-consumer men's underwear e-commerce with strong collection-driven merchandising.
• 2(X)IST: 2(X)IST is a men's underwear and activewear brand with enhancement/pouch-driven product lines. Comparable to Rounderbum because both sell men's underwear focused on fit, pouch construction, and physique enhancement.
• Tommy John: Tommy John is a premium DTC men's underwear, shapewear and basics brand. It overlaps directly with Rounderbum on men's underwear and compression/shapewear categories sold primarily via own e-commerce storefront.
• David Archy: David Archy is a men's underwear brand with multiple pouch/enhancement SKUs (trunks, briefs, jockstraps). Comparable to Rounderbum because both market men's underwear with anatomical enhancement designs at accessible price points.
• Saxx Underwear: Saxx is a men's underwear brand known for technical pouch/ballpark construction. Comparable to Rounderbum because both market men's underwear engineered around anatomical support and front-pouch design.
• Pair of Thieves: Pair of Thieves is a multi-channel men's and women's underwear/athleisure brand. Comparable to Rounderbum as a DTC-native basics brand with strong collection/limited-drop merchandising and wholesale distribution.

Broad incumbents

• Spanx: Spanx is the category-defining shapewear brand, primarily women's but with an expanding men's line. It is comparable to Rounderbum as the broad incumbent in shapewear whose men's push competes for the same niche consumer.
• Skims: Skims is a celebrity-led DTC shapewear and basics brand. It is comparable to Rounderbum as a broad incumbent in shaping apparel with strong DTC/e-commerce presence, though currently more weighted toward women's.
• Calvin Klein: Calvin Klein is a global apparel and underwear brand. Comparable as a broad incumbent whose men's underwear franchise competes for the same consumer wallet and shelf space as Rounderbum.

Emerging players

• Buck Naked Underwear: Buck Naked is a smaller men's underwear brand selling basics and pouch-construction underwear online. Comparable as an emerging DTC player targeting a similar niche of comfort/anatomy-focused men's underwear shoppers.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/rounderbum
• YouTubeyoutube.com/channel/UCt9ZCL6EX7zIiHi1j_PtqSA
• Facebookfacebook.com/Rounderbum
• Instagraminstagram.com/rounderbum
• LinkedInlinkedin.com/company/rounderbum

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rounderbum