The new shape of men’s fashion
Prime Sport Brief Black
Runs small. We recommend sizing up.
Fit
- Description
- Style and Fit
- Fabric and Care
- Shipping
Sleek, minimal, and cut to move.
The C-IN2 Prime Sport Brief brings a refined edge to a bold, athletic silhouette. Designed with a high-cut leg and low-profile shape, it offers greater freedom through the thigh while maintaining a clean, tailored look.
Crafted from an ultra-soft cotton–lyocell blend, this brief delivers breathable comfort with a smooth, elevated feel. A 2-ply contour pouch provides sculpted support and structure, while covered elastic leg openings ensure a secure fit that moves naturally with the body. Finished with C-IN2’s dynamic logo waistband, this is modern underwear—precise, confident, and made to be worn.
Fit Note: Runs small. We recommend sizing up (if you usually wear a size M, order a size L).
Features
Sport Brief Silhouette
High-cut leg design with less fabric on the upper thigh for mobility and a bold profile.
Cotton–Lyocell Blend
Ultra-soft, breathable fabric with a smooth, lightweight drape.
2-Ply Contour Pouch
Provides sculpted support and comfortable structure.
Covered Elastic Leg Openings
Clean, stay-put fit designed for all-day comfort.
Exposed Logo Waistband
1.18" elastic with C-IN2’s dynamic branding for a refined finish.
Brief style underwear
Low-rise, sits below the natural waistline
Model's height is 6"1'/185 cm, and he is wearing size M.
60% Cotton, 40% Lyocell
Machine Wash
Do Not Tumble Dry. Hang dry or dry flat
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.
Complete the Set
Need help?
Send us an email at support@c-in2.com.
- Comfort
- Fit
- Material
- CQCaleb Q.Verified BuyerI recommend this productBody Type Slim, TallNormal Size Worn LSize in Other Brands MSize Bought LRated 5 out of 5 stars4 months agoSuper comfortable, and just the
Super comfortable, and just the right fit. The sorry and the dash are my newest favorite briefs.
Was this helpful? - PBPierre B.Verified BuyerI recommend this productBody Type SlimNormal Size Worn SSize in Other Brands SSize Bought MRated 5 out of 5 stars5 months agoGreat briefs !
Great briefs !
Was this helpful? - ADAnastasios D.Verified BuyerI recommend this productBody Type SlimNormal Size Worn MSize in Other Brands MSize Bought LRated 5 out of 5 stars9 months agoReally comfortable brief, nice breathable
Really comfortable brief, nice breathable fabric, suggest sizing up
Was this helpful? - TNTam N.Verified BuyerI recommend this productBody Type MuscularNormal Size Worn SSize in Other Brands SSize Bought MRated 5 out of 5 stars1 year ago.
.
Was this helpful? - AKallan k.Verified BuyerI recommend this productBody Type Slim, TallNormal Size Worn MSize in Other Brands MSize Bought MRated 5 out of 5 stars1 year agoSize not correct should have
Size not correct should have warning it is smaller than all other styles -all other pairs of M (purchased 5 different pairs of C -in2 - they fit me v well, this one is too too small -no use and cannot be worn.
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