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
Subtotal Free
View cart
Shipping, taxes, and discount codes are calculated at checkout

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

The new shape of men’s fashion

Core Low No Show Socks 3 Pack White - C - IN2 New York
Core Low No Show Socks 3 Pack White - C - IN2 New York
Core Low No Show Socks 3 Pack White - C - IN2 New York
Core Low No Show Socks 3 Pack White - C - IN2 New York

Core Low No Show Socks 3 Pack White

$25.00 USD
Size Size chart

Fit

12345
SmallTrue to sizeLarge
ColorWHITE
Core Low No Show Socks 3 Pack Black - C - IN2 New York

Invisible comfort, maximum performance. The C-IN2 Core Lo No Show Socks are ultra-low sock liners designed to stay hidden while keeping your feet cool, cushioned, and supported. Made from a soft combed cotton blend with reinforced stretch and breathable mesh zones, these socks offer a stay-put fit that won’t slide or bunch. Perfect for sneakers or low-cut shoes, they’re the everyday essential you’ll forget you’re wearing—in the best way.

  • Extra Low Cut Design – Invisible in most sneakers and low-profile shoes
  • Multipack (3 Pairs) – Great value in white or black
  • Invisible Toe Seam – Smooth comfort that won’t irritate
  • Non-Slip Construction – Designed to stay in place all day
  • Y-Heel Fit – Tailored shape for better grip and no slippage
  • Mesh Inset – Boosts airflow for cool, breathable wear
  • Reinforced Stretch – Nylon and elastane for strength, shape retention, and flexibility
  • Fits Men’s Shoe Sizes 9–12
  • Style and Fit
  • Fabric and Care
  • Shipping

Extra low, no show sock liners
Includes 3 pairs
Invisible toe seam

89% Combed Cotton, 9% Nylon, 2% Elastane
Machine Wash. Use non-chlorine bleach
on whites to preserve elastane stretch. May appear smaller after first wash and dry cycle due to elastane.
Imported

Get free shipping for US orders over $99.

Discreet packaging: plain poly bag or brown box.

For shipping info: C-IN2 Shipping.

CORE

C-IN2 Core: Uncompromising Comfort, Unrivaled Choice.

Discover the difference of Core, C-IN2's signature collection designed for the modern man. Made with premium 100% cotton, Core delivers an unparalleled experience of softness and breathability, ensuring all-day comfort and support. Innovative design meets exceptional fabric, creating underwear that feels as good as it looks.

Dive into the vast world of Core and find your perfect fit. As C-IN2's largest and most popular collection, Core boasts a diverse range of styles – from essential briefs and boxers to on-trend trunks and thongs – catering to every preference and occasion.

Don't compromise on comfort or style. Choose C-IN2 Core and elevate your everyday with underwear that delivers superior quality, exceptional variety, and lasting satisfaction.

Discreetly shipped in a plain brown box or poly bag.

SKU: 2002-100-OS

Complete the Set

Need help?

Send us an email at support@c-in2.com.

 [{"variant_id":"39720366964784" , "metafield_value":""}]
>
  • Related products
  • 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.

Sexy Styles

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

Discover Your Style

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

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.