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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

$31.50 USD $45.00 USD
RO3 High Twist Summer Crew Neck T-Shirt Black

RO3 High Twist Summer Crew Neck T-Shirt Black

Color: BLACK

$8.00 USD $40.00 USD
Layers Slim Crew Neck T-Shirt Black

Layers Slim Crew Neck T-Shirt Black

Color: BLACK

$28.00 USD $40.00 USD
Layers Slim Crew Neck T-Shirt White

Layers Slim Crew Neck T-Shirt White

Color: WHITE

$28.00 USD $40.00 USD

The new shape of men’s fashion

Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
Core Y-Back Thong Grey Heather
4.7
Rated 4.7 out of 5 stars
209 Reviews

Core Y-Back Thong Grey Heather

30% OFF at checkout
$19.50 USD $26.00 USD
Item is in stock Hurry, Only 0 Left! Item is out of stock Item is unavailable
ColorGREY HEATHER
Size Size chart

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

Fit

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

Minimal Coverage. Maximum Confidence.

The C-IN2 Core Y-Back Thong delivers a sleek, low-profile fit with a signature Y-back elastic strap for a barely-there feel. Made from breathable 100% cotton, it offers soft, natural comfort designed for all-day wear.

A sculpted 1-ply contour pouch provides gentle support and room where it counts, while clean elastic binding keeps the fit secure and comfortable without digging. Finished with C-IN2’s dynamic logo waistband, this thong is all about clean lines, confident fit, and everyday ease.

Features

100% Cotton Fabric
Soft, breathable cotton designed for natural, all-day comfort.

Y-Back Thong Design
Minimal coverage with a sleek elastic back strap for a secure, barely-there fit.

1-Ply Contour Pouch
Center-seam construction provides light support, lift, and room.

Clean Elastic Binding
Smooth, secure finish designed to stay comfortable without digging.

Signature Logo Waistband
Exposed 1.5" elastic with engineered C-IN2 repeat branding.

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

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

100% cotton
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: 4002-070-S

Complete the Set

Need help?

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

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4.7
Rated 4.7 out of 5 stars
Based on 209 reviews
95%would recommend these products
Reviews Summary
Customers say these Y-back thongs are incredibly comfortable and feel like wearing nothing at all. The Y-back design is more comfortable than traditional thong styles, with many noting the thin strap is less invasive. Users love the ample pouch space and support, finding them perfect for daily wear, sports, and gym activities. The soft material washes well and maintains durability. Many customers become repeat buyers and recommend sizing up for the best fit, though some find them true to size. A few mention sizing inconsistencies between colors and note the fabric can feel slightly stiff initially.
Customers Talked About
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209 reviews
  • NW
    Nashan W.
    Verified Buyer
    Reviewing
    Core Y-Back Thong Black
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Runs true to size.

    Runs true to size.

    Was this helpful?
  • PC
    Patrick C.
    Verified Buyer
    Reviewing
    Core Y-Back Thong Black
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Perfect fitting pouch, the Y

    Perfect fitting pouch, the Y back is super comfortable, and they look great and feel wonderfully minimal in jeans and shorts. Will be buying more for sure.

    Was this helpful?
  • BR
    BORIS R.
    Verified Buyer
    Reviewing
    Core Y-Back Thong Grey Heather
    I recommend this product
    Body Type Muscular
    Height 5' 4-5' 6
    Normal Size Worn S
    Size in Other Brands S
    Size Bought XS
    Rated 5 out of 5 stars
    34 minutes ago
    Nice and fits perfectly

    Is nice

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

    Hello Boris,

    Thank you for the wonderful review! We're so glad the Core Y-Back Thong fits perfectly and that you're enjoying it.

    Best,
    C-IN2

  • CB
    Carey B.
    Verified Buyer
    Reviewing
    Core Y-Back Thong Black
    I recommend this product
    Body Type Stocky
    Height 5' 10-6' 0
    Normal Size Worn XL
    Size in Other Brands L
    Size Bought L
    Rated 4 out of 5 stars
    1 week ago
    Runs small

    great product, but. A size up.

    Was this helpful?
  • JP
    Jon P.
    Verified Buyer
    Reviewing
    Core Y-Back Thong Black
    I recommend this product
    Body Type Stocky, Big Junk, Tall
    Height 5' 10-6' 0
    Normal Size Worn XL
    Size in Other Brands XXL
    Size Bought XXL
    Rated 5 out of 5 stars
    1 month ago
    Little large!

    A little large took a gamble as in xl which was not available so bought the 2x my butt isn't a bubble but it's good the thong feels a little lose but holds the pouch in place I love it very comfortable as I all day and slept with it on no complaints 😀 👍

    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.