This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

Start Earning Rewards Join the C-IN2 Circle

Free Shipping US orders over $99

Easy Returns Go to Returns Center

Cart 0

No more products available for purchase

Products

International orders are final sale. For orders that are shipping to destinations outside of the United States (including Canada), you may have to pay duties and taxes to your country's government.

Pair with

Your Cart is Empty

Perfect Pima Relaxed Crew Neck T-Shirt White - C - IN2 New York

Perfect Pima Relaxed Crew Neck T-Shirt White

Color: WHITE

$12.60 USD $36.00 USD

Layers Classic Ribbed Fitted Tank White - C - IN2 New York

Layers Classic Ribbed Fitted Tank White

Color: WHITE

$32.00 USD

Hand Me Down Crew Neck T-Shirt Smoke Heather

Hand Me Down Crew Neck T-Shirt Smoke Heather

Color: SMOKE HEATHER

$45.00 USD

High Twist Summer Crew Neck T-Shirt Black - C - IN2 New York

High Twist Summer Crew Neck T-Shirt Black

Color: BLACK

$20.00 USD $40.00 USD

Layers Slim Crew Neck T-Shirt Black

Layers Slim Crew Neck T-Shirt Black

Color: BLACK

$40.00 USD

Layers Slim Crew Neck T-Shirt White

Layers Slim Crew Neck T-Shirt White

Color: WHITE

$40.00 USD

Shop Men’s Briefs, Boxers, Tanks, and More by C-IN2

Bottoms

C-IN2 Bottoms are where style meets performance, giving you men’s underwear that feels as good as it looks. Explore every fit—low rise briefs, sport briefs, trunks, jocks, thongs, and boxer briefs—each designed with a supportive contour pouch and sculpted lines that flatter the body. From soft cotton basics to breathable mesh and moisture-wicking performance blends, our fabrics are engineered for comfort that lasts all day. Whether you want bold, fashion-forward styles or everyday essentials, C-IN2 bottoms keep you confident from workout to night out. Shop men’s underwear bottoms that are built to support, perform, and turn heads.

Filters0

New Core

Core Low Rise Brief White

Core Low Rise Brief White - C - IN2 New York

Core Low Rise Brief White - C - IN2 New York

Core Low Rise Brief White - C - IN2 New York

Core Low Rise Brief White - C - IN2 New York

Core Low Rise Brief White

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black - C - IN2 New York

Core Low Rise Brief Black

Core Y - Back Thong Black - C - IN2 New York

Core Y - Back Thong Black - C - IN2 New York

Core Y - Back Thong Black - C - IN2 New York

Core Y - Back Thong Black - C - IN2 New York

Core Y - Back Thong Black - C - IN2 New York

Core Y - Back Thong Black - C - IN2 New York

Core Y - Back Thong Black - C - IN2 New York

Core Y-Back Thong Black

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink - C - IN2 New York

Prime Thong Pelton Pink

Core Low Rise Brief Grey Heather

Core Low Rise Brief Grey Heather - C - IN2 New York

Core Low Rise Brief Grey Heather - C - IN2 New York

Core Low Rise Brief Grey Heather - C - IN2 New York

Core Low Rise Brief Grey Heather - C - IN2 New York

Core Low Rise Brief Grey Heather

Core Mid Rise Brief White

Core Mid Rise Brief White - C - IN2 New York

Core Mid Rise Brief White - C - IN2 New York

Core Mid Rise Brief White - C - IN2 New York

Core Mid Rise Brief White - C - IN2 New York

Core Mid Rise Brief White

Nu Low Rise Brief Black - C - IN2 New York

Nu Low Rise Brief Black - C - IN2 New York

Nu Low Rise Brief Black - C - IN2 New York

Nu Low Rise Brief Black - C - IN2 New York

Nu Low Rise Brief Black - C - IN2 New York

Nu Low Rise Brief Black - C - IN2 New York

Nu Low Rise Brief Black

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black - C - IN2 New York

Core Sport Brief Black

TransDRY® Low Rise Brief Black - C - IN2 New York

TransDRY® Low Rise Brief Black - C - IN2 New York

TransDRY® Low Rise Brief Black - C - IN2 New York

TransDRY® Low Rise Brief Black - C - IN2 New York

TransDRY® Low Rise Brief Black - C - IN2 New York

TransDRY® Low Rise Brief Black - C - IN2 New York

TransDRY® Low Rise Brief Black

Active Thong Nolan Navy - C - IN2 New York

Active Thong Nolan Navy - C - IN2 New York

Active Thong Nolan Navy - C - IN2 New York

Active Thong Nolan Navy - C - IN2 New York

Active Thong Nolan Navy - C - IN2 New York

Active Thong Nolan Navy - C - IN2 New York

Active Thong Nolan Navy - C - IN2 New York

50% OFF at Checkout

Active Thong Nolan Navy

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black - C - IN2 New York

Core Mid Rise Brief Black

Active Thong Rocco Red - C - IN2 New York

Active Thong Rocco Red - C - IN2 New York

Active Thong Rocco Red - C - IN2 New York

Active Thong Rocco Red - C - IN2 New York

Active Thong Rocco Red - C - IN2 New York

Active Thong Rocco Red - C - IN2 New York

Active Thong Rocco Red - C - IN2 New York

50% OFF at Checkout

Active Thong Rocco Red

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather - C - IN2 New York

Core Sport Brief Grey Heather

Hand Me Down Low Rise Brief Bowen Blue Heather - C - IN2 New York

Hand Me Down Low Rise Brief Bowen Blue Heather - C - IN2 New York

Hand Me Down Low Rise Brief Bowen Blue Heather - C - IN2 New York

Hand Me Down Low Rise Brief Bowen Blue Heather - C - IN2 New York

Hand Me Down Low Rise Brief Bowen Blue Heather - C - IN2 New York

Hand Me Down Low Rise Brief Bowen Blue Heather - C - IN2 New York

Hand Me Down Low Rise Brief Bowen Blue Heather

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red - C - IN2 New York

H+A+R+D Thong Raddix Red

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black - C - IN2 New York

TransDRY® Jock Black

H+A+R+D Thong Garth Green

H+A+R+D Thong Garth Green - C - IN2 New York

H+A+R+D Thong Garth Green - C - IN2 New York

H+A+R+D Thong Garth Green - C - IN2 New York

H+A+R+D Thong Garth Green - C - IN2 New York

H+A+R+D Thong Garth Green

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green - C - IN2 New York

Zen Thong Godi Green

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red - C - IN2 New York

Mesh Thong Randall Red

Core Jock Black - C - IN2 New York

Core Jock Black - C - IN2 New York

Core Jock Black - C - IN2 New York

Core Jock Black - C - IN2 New York

Core Jock Black - C - IN2 New York

Core Jock Black - C - IN2 New York

Core Jock Black - C - IN2 New York

Core Jock Black

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow - C - IN2 New York

Mesh Thong Yaron Yellow

TransDRY® Jock Badar Blue - C - IN2 New York

TransDRY® Jock Badar Blue - C - IN2 New York

TransDRY® Jock Badar Blue - C - IN2 New York

TransDRY® Jock Badar Blue - C - IN2 New York

TransDRY® Jock Badar Blue - C - IN2 New York

TransDRY® Jock Badar Blue

TransDRY® Jock Goryn Grey - C - IN2 New York

TransDRY® Jock Goryn Grey - C - IN2 New York

TransDRY® Jock Goryn Grey - C - IN2 New York

TransDRY® Jock Goryn Grey - C - IN2 New York

TransDRY® Jock Goryn Grey - C - IN2 New York

TransDRY® Jock Goryn Grey

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather - C - IN2 New York

Hand Me Down Low Rise Brief Smoke Heather

Core Classic Thong White - C - IN2 New York

Core Classic Thong White - C - IN2 New York

Core Classic Thong White - C - IN2 New York

Core Classic Thong White - C - IN2 New York

Core Classic Thong White - C - IN2 New York

Core Classic Thong White - C - IN2 New York

Core Classic Thong White - C - IN2 New York

Core Classic Thong White

Active Jock Olan Olive - C - IN2 New York

Active Jock Olan Olive - C - IN2 New York

Active Jock Olan Olive - C - IN2 New York

Active Jock Olan Olive - C - IN2 New York

Active Jock Olan Olive - C - IN2 New York

50% OFF at Checkout

Active Jock Olan Olive

Core Low Rise Brief Grayson Green - C - IN2 New York

Core Low Rise Brief Grayson Green - C - IN2 New York

Core Low Rise Brief Grayson Green - C - IN2 New York

Core Low Rise Brief Grayson Green - C - IN2 New York

Core Low Rise Brief Grayson Green - C - IN2 New York

Core Low Rise Brief Grayson Green - C - IN2 New York

Core Low Rise Brief Grayson Green

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral - C - IN2 New York

Nu Thong Navid Neutral

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink - C - IN2 New York

Zen Thong Piero Pink

Active Jock Nolan Navy - C - IN2 New York

Active Jock Nolan Navy - C - IN2 New York

Active Jock Nolan Navy - C - IN2 New York

Active Jock Nolan Navy - C - IN2 New York

Active Jock Nolan Navy - C - IN2 New York

50% OFF at Checkout

Active Jock Nolan Navy

Hand Me Down Runner Boxer Coal Heather

Hand Me Down Runner Boxer Coal Heather - C - IN2 New York

Hand Me Down Runner Boxer Coal Heather - C - IN2 New York

Hand Me Down Runner Boxer Coal Heather - C - IN2 New York

Hand Me Down Runner Boxer Coal Heather - C - IN2 New York

Hand Me Down Runner Boxer Coal Heather

New Core Ankle Socks 3 Pack White - C - IN2 New York

New Core Ankle Socks 3 Pack White - C - IN2 New York

New Core Ankle Socks 3 Pack White - C - IN2 New York

New Core Ankle Socks 3 Pack White - C - IN2 New York

New Core Ankle Socks 3 Pack White - C - IN2 New York

New Core Ankle Socks 3 Pack White - C - IN2 New York

New Core Ankle Socks 3 Pack White

C - Theory Thong Plato Pink - C - IN2 New York

C - Theory Thong Plato Pink - C - IN2 New York

C - Theory Thong Plato Pink - C - IN2 New York

C - Theory Thong Plato Pink - C - IN2 New York

C - Theory Thong Plato Pink - C - IN2 New York

C - Theory Thong Plato Pink - C - IN2 New York

C - Theory Thong Plato Pink - C - IN2 New York

C-Theory Thong Plato Pink

Sheer Low Rise Brief Nix Nude - C - IN2 New York

Sheer Low Rise Brief Nix Nude - C - IN2 New York

Sheer Low Rise Brief Nix Nude - C - IN2 New York

Sheer Low Rise Brief Nix Nude - C - IN2 New York

Sheer Low Rise Brief Nix Nude - C - IN2 New York

Sheer Low Rise Brief Nix Nude

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black - C - IN2 New York

New Core Ankle Socks 3 Pack Black

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green - C - IN2 New York

Hard//Core Thong Gibson Green

Core Jock White - C - IN2 New York

Core Jock White - C - IN2 New York

Core Jock White - C - IN2 New York

Core Jock White - C - IN2 New York

Core Jock White - C - IN2 New York

Core Jock White - C - IN2 New York

Core Jock White - C - IN2 New York

Core Jock White

Pro Jock Black - C - IN2 New York

Pro Jock Black - C - IN2 New York

Pro Jock Black - C - IN2 New York

Pro Jock Black - C - IN2 New York

Pro Jock Black - C - IN2 New York

50% OFF at Checkout

Pro Jock Black

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue - C - IN2 New York

Hard//Core Thong Blaise Blue

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green - C - IN2 New York

Hard//Core Sport Brief Gibson Green

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green - C - IN2 New York

Hand Me Down Thong Greko Green

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

TransDRY® X - Jock Badar Blue Limited Edition - C - IN2 New York

New Arrival

TransDRY® X-Jock Night Navy

Zen Hipster Godi Green - C - IN2 New York

Zen Hipster Godi Green - C - IN2 New York

Zen Hipster Godi Green - C - IN2 New York

Zen Hipster Godi Green - C - IN2 New York

Zen Hipster Godi Green - C - IN2 New York

Zen Hipster Godi Green - C - IN2 New York

Zen Hipster Godi Green

C - Theory Thong Godfry Green - C - IN2 New York

C - Theory Thong Godfry Green - C - IN2 New York

C - Theory Thong Godfry Green - C - IN2 New York

C - Theory Thong Godfry Green - C - IN2 New York

C - Theory Thong Godfry Green - C - IN2 New York

C - Theory Thong Godfry Green - C - IN2 New York

C - Theory Thong Godfry Green - C - IN2 New York

C-Theory Thong Godfry Green

C - Theory Thong Ruel Red - C - IN2 New York

C - Theory Thong Ruel Red - C - IN2 New York

C - Theory Thong Ruel Red - C - IN2 New York

C - Theory Thong Ruel Red - C - IN2 New York

C - Theory Thong Ruel Red - C - IN2 New York

C - Theory Thong Ruel Red - C - IN2 New York

C - Theory Thong Ruel Red - C - IN2 New York

C-Theory Thong Ruel Red

Active Jock Rocco Red - C - IN2 New York

Active Jock Rocco Red - C - IN2 New York

Active Jock Rocco Red - C - IN2 New York

Active Jock Rocco Red - C - IN2 New York

Active Jock Rocco Red - C - IN2 New York

50% OFF at Checkout

Active Jock Rocco Red

Pro Jock Mushroom Taupe - C - IN2 New York

Pro Jock Mushroom Taupe - C - IN2 New York

Pro Jock Mushroom Taupe - C - IN2 New York

Pro Jock Mushroom Taupe - C - IN2 New York

Pro Jock Mushroom Taupe - C - IN2 New York

50% OFF at Checkout

Pro Jock Mushroom Taupe

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green - C - IN2 New York

Nu Thong Guto Green

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink - C - IN2 New York

Hard//Core Thong Pietro Pink

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral - C - IN2 New York

Hard//Core Thong Nico Neutral

Recently viewed

Engineered for movement. Built to last.

For nearly two decades, C-IN2 has redefined men’s underwear with premium materials, sculpted fits, and bold design. With over 100,000 customers and counting, our products deliver confidence from the inside out.

Ergonomic Contour Pouch

Sculpted Lift – Natural shape and definition
Locked-In Support – No shifting, no sagging
Flexible Fit – Moves with you, always
All-Day Comfort – For work, workouts, or rest

SHOP Hand Me Down

Innovative Fabric Blends

Designed for movement, made to be seen
Performance-grade functionality
Precision blends that hold shape and color
Comfort that doesn’t compromise on style

SHOP FLEX

Everyday Durability

Keeps its shape, wash after wash
No sag, no bag, no fade
Consistent support that doesn’t quit
Quality construction made to outlast trends

shop core

Everyday Essentials

Comfort meets quality. These are your daily go-to’s—built to move, breathe, and feel amazing under anything.

The Perfect Tees - Pima Cotton T-Shirts

Tanks, Your Way - Fitted or Relaxed

Flex – Everyday Mesh Comfort

Pro – Built for Performance

Core – 100% Cotton Classics

Sexy Styles

Minimal coverage, max impact. These are the cuts turning heads—from bold jocks to sleek thongs.

Why More Men Are Wearing Jocks

Why More Men Are Wearing Thongs

Sheer Collection – See-Through, Stand Out

Discover Your Style

Fit, function, and personality. From our best-sellers to boldest cuts, here’s where to start.

Best-Selling Underwear

Brief Style Comparison

Low-Rise Briefs Guide

Sexy Men’s Jocks & Thongs

Lingerie for Men

Premium Basics, Engineered for Every Body

C-IN2 is a New York–born men’s underwear and apparel brand with one mission: to make every man look good and feel confident. We design premium basics and fashion-forward styles with innovative fabrics, engineered fits, and durable construction that lasts. Working closely with our partners, we create unique materials and refine every detail—from the cut of a t-shirt to the fit of a brief—to deliver comfort and style you can feel every day. Inclusive, empowering, and unapologetically bold—C-IN2 is made for every body.