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Layers Classic Ribbed Fitted Tank White

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

RO3 High Twist Summer Crew Neck T-Shirt Black

RO3 High Twist Summer Crew Neck T-Shirt Black

Color: BLACK

$16.00 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

Hard//Core Sport Brief Gibson Green
Hard//Core Sport Brief Gibson Green
Hard//Core Sport Brief Gibson Green
Hard//Core Sport Brief Gibson Green
Hard//Core Sport Brief Gibson Green
Hard//Core Sport Brief Gibson Green
Hard//Core Sport Brief Gibson Green
4.9
Rated 4.9 out of 5 stars
164 Reviews

Hard//Core Sport Brief Gibson Green

Clearance | Final Sale
$8.00 USD $28.00 USD
Item is in stock Hurry, Only 0 Left! Item is out of stock Item is unavailable
ColorGIBSON GREEN
Size Size chart

True to size. For loose fit, go one size up.

Fit

12345
SmallTrue to sizeLarge
  • Description
  • Style and Fit
  • Fabric and Care
  • Shipping

Disclaimer: Compostable bag may arrive torn. Product is brand new. Details below.

High-leg sport brief with cotton stretch structure and athletic mobility

The C-IN2 HARD//Core Sport Brief is built for guys who want less coverage and more freedom. Cut high through the leg, this streamlined silhouette opens up the thigh for mobility while delivering a bold, athletic profile that feels confident and intentional.

Made from a soft cotton–elastane rib knit, it blends vintage-inspired texture with modern stretch for breathable, everyday comfort. A sculpted 1-ply contour pouch provides lightweight support, while dyed-to-match rib knit binding and a wide 2" engineered logo waistband keep the finish clean, controlled, and purposeful. Minimal coverage. Maximum presence.

Fabric Type & Performance
Cotton stretch rib knit designed for breathable comfort, flexibility, and everyday durability.

Fabric Composition
96% Cotton / 4% Elastane.

Fit & Silhouette
Sport brief silhouette with a streamlined, athletic profile.

Rise
Low-rise design that sits below the natural waist.

Pouch Construction
1-ply contour pouch delivers lightweight support with natural shaping.

Leg Openings
High-leg cut finished with dyed-to-match rib knit binding for mobility and a clean edge.

Waistband
2" exposed elastic waistband with engineered C-IN2 branding at center front.

Care Instructions
Machine wash.
Imported.

HARD//Core Collection

The HARD//Core collection pairs vintage-inspired design with modern simplicity. Built from super-soft cotton stretch rib knit, each style delivers a confident, structured fit with bold visual impact.

Defined by clean silhouettes, dyed-to-match rib knit binding, and wide engineered waistbands, HARD//Core updates classic underwear styles with sharper execution and contemporary edge. Heritage attitude—refined, intentional, and built to stand out.

Packaging Disclaimer
We tried to do better for the planet, but this one didn't work out. To reduce our environmental impact, we packed select underwear styles in this collection in compostable bags. Some of these bags broke down sooner than we expected, so yours may arrive torn or damaged. We're sorry about that.

The underwear inside is brand new and unworn. If it's a gift, the bag may not be gift-ready. All other C-IN2 products are unaffected.

Brief style underwear
Low-rise, sits below the natural waistline

Model's height is 6'1"/185 cm, and he is wearing size M.

96% Cotton, 4% Elastane
Machine Wash
Imported

Get free shipping for US orders over $99.

Discreet packaging: plain poly bag or brown box.

For shipping info: C-IN2 Shipping.

Discreetly shipped in a plain brown box or poly bag.

SKU: 2714-356AS-S

Complete the Set

Need help?

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

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4.9
Rated 4.9 out of 5 stars
Based on 164 reviews
98%would recommend these products
Reviews Summary
Customers say these sport briefs offer excellent fit and comfort with a supportive ribbed fabric that feels soft yet durable. The wide waistband sits higher than typical underwear, providing welcomed support and a secure feel. The roomy pouch accommodates well without being restrictive, and the high-cut leg openings work particularly well for those with larger thighs. Many appreciate the athletic styling and how the cut enhances their appearance. The material wicks moisture effectively and maintains its shape after washing. While most find the sizing accurate, one reviewer noted inconsistent sizing across different styles, and a few mentioned the waistband can roll or that sizing up might improve comfort.
Customers Talked About
Write a Review (Opens in a new window)
164 reviews
  • R
    Ryan
    Reviewing
    Hard//Core Sport Brief Nash Navy
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Perfect fit!

    Perfect fit! Love where it hugs!!

    Was this helpful?
  • GN
    George N.
    Verified Buyer
    Reviewing
    Hard//Core Sport Brief Gibson Green
    I recommend this product
    Rated 4 out of 5 stars
    35 minutes ago
    Firm fitting

    Good fit and style

    Was this helpful?
    C-IN2 New York
    4 minutes ago

    Hello George,

    Thank you for the wonderful review! We're glad you're enjoying the firm fit and style of the Hard//Core Sport Brief Gibson Green.

    Best,
    C-IN2

  • PJ
    Prof J. E. W.
    Verified Buyer
    Reviewing
    Hard//Core Sport Brief Pietro Pink
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    Ewxeent fitt

    These undies are very comfortable to wear. They fit. The Western male physique perfectly

    Was this helpful?
    C-IN2 New York
    6 days ago

    Hello Prof,

    Thank you for the wonderful review! We're so glad to hear the Hard//Core Sport Brief fits great and feels comfortable. We really appreciate your support!

  • S Profile picture for Scooter
    Scooter
    Verified Buyer
    Reviewing
    Hard//Core Sport Brief Blaise Blue
    I recommend this product
    Rated 4 out of 5 stars
    6 days ago
    Pouch a bit big

    I'm an avg guy & this one kinda have a big pouch

    Was this helpful?
  • JD
    joseph d.
    Verified Buyer
    Reviewing
    Hard//Core Sport Brief Blaise Blue
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    High hardcore

    Love the wide band, pale blue color is relaxing really would like to Not cover them up

    Was this helpful?
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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.