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The new shape of men’s fashion

4.3
Rated 4.3 out of 5 stars
4 Reviews

Flex Trunk Sage Green

New Season
$34.00 USD
Item is in stock Hurry, Only 0 Left! Item is out of stock Item is unavailable

Size Size chart

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

Fit

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Mid-rise mesh trunk with flexible support and a 3" inseam.

The C-IN2 Flex Trunk (3") delivers everyday performance in a sleek, modern silhouette. Made from a soft cotton-modal mesh with 4-way stretch, it adapts to your movement while staying lightweight, breathable, and comfortable. Designed for guys who want a shorter trunk that balances mobility, coverage, and a clean profile.


4-Way Stretch Mesh Fabric
Breathable mesh construction that flexes naturally in every direction.

Fabric Composition
57% Cotton / 38% Modal / 5% Elastane
Soft, breathable, and flexible with a smooth, comfortable hand feel.

Trunk Fit — Mid-Rise
Sits at the natural waistline for balanced coverage and everyday comfort.

Contour Pouch (2-ply)
Structured, sculpted support with natural lift and all-day comfort.

Microfiber Leg Bands
Smooth, stay-put finish designed to reduce ride-up without digging.

Logo Waistband — 1.5"
Exposed elastic waistband with sleek, engineered C-IN2 branding.

3" Inseam
Compact length that balances freedom of movement with a streamlined look.

Everyday Use Case
Ideal for daily wear, active movement, and guys who prefer a shorter, modern trunk.

Trunk style underwear
Mid-rise, sits at the natural waistline

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

57% Cotton, 38% Modal, 5% 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: 9023-397AS-XS

Complete the Set

Need help?

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

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4.3
Rated 4.3 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 1 Total 1 star reviews: 0
75%would recommend these products
4 reviews
  • MW
    Michael W.
    Flag of United States
    Verified Buyer
    Reviewing
    Flex Trunk Black
    I recommend this product
    Body Type Tall, Big Junk, Muscular
    Size in Other Brands L
    Size Bought L
    Rated 5 out of 5 stars
    1 week ago
    Great fit and feel

    Great fit and feel

  • MR
    Manny R.
    Verified Buyer
    Reviewing
    Flex Trunk Black
    I recommend this product
    Rated 5 out of 5 stars
    10 months ago
    Excellent material and my type

    Excellent material and my type of style

  • TB
    Tim B.
    Verified Buyer
    Reviewing
    Flex Trunk Black
    I do not recommend this product
    Rated 2 out of 5 stars
    10 months ago
    Really weird droopy, no support,

    Really weird droopy, no support, poor fit. . . disappointed tbf

  • B
    brian
    Reviewing
    Flex Trunk Black
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    5 Stars

    Best fit of underwear