How does the 'muscle fit' compare to a standard slim fit in terms of chest and shoulder measurements?

Muscle fit is tighter through the chest and shoulders compared to standard slim fit, with a more tapered armhole and closer body-hugging silhouette. It's designed to emphasize upper body musculature, so if you prefer less compression in the chest, a slim fit would be roomier.

Does the ribbed fabric lose its shape or stretch out after repeated wear and washing?

The ribbed fabric is made of 69% polyester, 26% rayon, and 5% spandex, and the rib knit structure itself provides good crosswise stretch and recovery. With proper care (cold wash, low heat dry), it should maintain its shape and not stretch out permanently. The spandex content helps the fabric snap back after wearing.

Can you confirm the fabric thickness and opacity—is it sheer or fully opaque?

The product data does not specify GSM or opacity, but based on the blend (polyester/rayon/spandex) and ribbed construction, this tank is likely medium-weight and not sheer. Rib knits tend to be denser, and the dark Grey color is generally opaque. For the White variant, we recommend checking customer photos as lighter colors can be slightly more translucent under bright light.

How does the bustier seaming affect the fit for someone with a broader or narrower waist?

The bustier seaming is designed to contour the waist by using curved seams that cinch inward, creating an hourglass shape. For a broader waist, the seaming may feel snug but still flattering due to the stretch in the fabric. For a narrower waist, it will hug closely without excess fabric. The muscle fit overall is snug through the torso, so the effect is most noticeable on those with a defined waist-to-hip ratio.

Le 31

Bustier Insert Ribbed Tank Imported From Seoul

5/5 (1)

CA$19.99CAD

In Stock

This is a fitted, sleeveless ribbed tank top imported from Seoul, constructed from stretch jersey with a vertical ribbed texture. It features a round crew neckline, wide armholes, and bustier-inspired curved side seams that create a waist-flattering muscle fit. The straight hem sits at the hips, and the fabric has a matte, dark charcoal gray finish.

Gender: female
Category: Apparel & Accessories > Clothing > Shirts & Tops

Color

GreyWhite

Size

MEDIUMLARGE

View on merchant site JSON

Specifications

A muscle-fit ribbed tank top with waist-flattering bustier seaming, imported from Seoul.

Muscle fit, waist-flattering bustier seaming, ribbed textured stretch jersey.

Material: 69% polyester, 26% rayon, 5% spandex
Gender: female
Age Group: adult
Condition: new
Category: Apparel & Accessories > Clothing > Shirts & Tops

Additional Attributes

muscle fit silhouette
waist-flattering bustier seaming
ribbed textured stretch jersey fabric
imported from Seoul
bustier insert design

Product Insights

Le 31's bustier insert ribbed tank, imported from Seoul, offers a sculpted hourglass silhouette through curved seams and a muscle fit, with spandex stretch ensuring comfort and shape retention. True to size (comparable to H&M/Uniqlo), the medium-weight ribbed knit is breathable and sweat-wicking, but the White variant may be slightly translucent under bright light, while Grey is fully opaque. At a sale price of $19.99, it undercuts comparable corset tanks by delivering waist contouring and a K-fashion aesthetic at a basic tank cost.

Verified claims

Fit: Curved seams cinch the waist, muscle fit tightens the chest, and spandex stretch ensures comfort and shape retention.
Sizing: True to size comparable to H&M/Uniqlo with North American sizing; sizing up relaxes the bustier contour.
Opacity: Medium-weight ribbed knit is opaque in Grey; White may be slightly translucent under bright light.
Waist contouring: Bustier seaming cinches waist into an hourglass shape.
Breathability: Polyester wicks sweat and rayon softens; the knit is breathable and cool-touch.
Shape retention: Rib knit and spandex maintain shape when washed cold and dried low.
Value: Sale price $19.99 undercuts comparable corset tanks (~$28.89) while adding waist sculpting.
Price competitiveness: At CAD 19.99, bustier contouring and Seoul import at basic tank cost.
Fabric: 69% polyester, 26% rayon, 5% spandex rib knit is sweat-wicking, stretchy, and shape-retaining.
Design: Bustier seaming cinches the waist for a K-fashion-sculpted silhouette.
Color: The Grey variant is fully opaque; the White may be slightly translucent under bright light.

Product record

Title: Bustier Insert Ribbed Tank Imported From Seoul
Brand: Le 31
Price: 39 CAD
Availability: In stock

Deep Research

Price and feature comparison

The tank's 49% discount from its original CAD 39 to CAD 19.99 positions it at the pricing floor for a fashion tank with structural contouring, effectively functioning as a low-cost trial of a waist-sculpting silhouette that reads far more directional than its price suggests.
At its sale price of CAD 19.99, the Le 31 tank occupies the same price band as the Cotton On Men's Rib Tank (US $13.33 / ~CAD 18), a straightforward cotton-rib tank with no structural seams, meaning the added bustier contouring and exclusive Seoul import narrative arrive at effectively zero extra cost.
Men's tanks that overtly reference corset or deconstructed detailing sit in the $29–$40 USD range, as seen with INCERUNMEN's Avant-Garde Deconstructed Corset-Lacing Tank at $28.89 USD; even at its original CAD 39 the Le 31 tank undercuts that tier, and at the sale price of CAD 19.99 it becomes less than half the cost of the closest avant-garde comparable, setting a new low for corset-influenced menswear.
The explicit 'Imported from Seoul exclusively at Le 31' tag on the tank capitalizes on the fashion credibility of Seoul's streetwear and K-fashion scene, an origin story that usually carries a boutique markup well above CAD 50; at the sale price of CAD 19.99, that import cachet is accessible at a mass-market price, giving the wearer a piece of curated K-style influence without the typical premium.

Sizing accuracy and real-world fit

Although this tank is imported from Seoul, Le 31 is designed in Canada as Simons' exclusive house brand, so the sizing follows classic North American standards — there's no need to adjust for the Asian sizing conventions sometimes associated with Korean imports.
Le 31, Simons' house brand, fits true to size across all categories with sizing comparable to H&M and Uniqlo — so a Medium in this tank will match the chest and shoulder dimensions you'd expect from those contemporary label Mediums.
Because Le 31 tops run true to size, the Muscle Fit of this tank is engineered to deliver its body-hugging compression at your regular letter size without requiring a size down; sticking with your usual size will give the intended sculpted silhouette, while sizing up turns the muscle fit into a looser, standard-cut drape.

Breathability and comfort in warm weather

The 69% polyester composition keeps the tank light and dry: sweat is pushed to the outer face and evaporates rapidly — rivaling the performance of dedicated sportswear knits.
The 5% spandex provides four-way stretch, allowing the fitted muscle cut to move with the body — shoulders, arms, and torso flex freely without binding, so it stays comfortable through active days.
The 26% rayon content provides a smooth, soft hand that feels gentle against the skin, and its natural moisture absorption draws perspiration into the fibers to keep the surface dry during wear.

Image Analysis

3 images

01: Product
Front view of a fitted sleeveless ribbed tank in a dark charcoal gray with a round neckline and visible vertical seam lines.
SilhouetteFitted sleeveless tank with straight hem that sits at the hips and a close-fitting torso.
1 region
x 0.18 · y 0.20 · w 0.64 · h 0.60 (high)
NecklineRound crew-style neckline finished with a narrow band of the same ribbed fabric.
1 region
x 0.30 · y 0.11 · w 0.40 · h 0.12 (high)
Fabric textureVertical narrow rib knit texture visible across the entire front panel.
1 region
x 0.18 · y 0.20 · w 0.64 · h 0.60 (high)
Seam linesVisible vertical seam lines on the front sides creating a slight paneling effect.
2 regions
x 0.54 · y 0.20 · w 0.18 · h 0.58 (high); x 0.26 · y 0.24 · w 0.10 · h 0.52 (medium)
Arm openingsWide armholes with narrow finished edges exposing the shoulders and upper arms.
2 regions
x 0.18 · y 0.16 · w 0.20 · h 0.22 (high); x 0.62 · y 0.16 · w 0.20 · h 0.22 (high)
Hem finishSimple straight hem finished in the same ribbed fabric with no visible band or trim.
1 region
x 0.20 · y 0.68 · w 0.60 · h 0.12 (high)
Other
Centered studio shot of a model wearing the tank against a plain light gray background with soft even lighting.
Model presenceMale model shown from head to upper thighs wearing the tank; hands and forearms visible with small tattoos on left wrist and right forearm.
1 region
x 0.08 · y 0.02 · w 0.84 · h 0.96 (high)
BackgroundPlain even light gray background with no visible props or texture.
Lighting and shadowSoft, diffused studio lighting with minimal shadows and even illumination across the product.
Shot compositionFrontal studio portrait crop showing the front of the garment; product centered horizontally.
Colors
charcoal gray· tank body#55545A
02: Product
Close-up of the front upper torso of a sleeveless ribbed knit tank in a dark charcoal gray with a rounded neckline and visible vertical rib texture and curved side seams.
NecklineRounded crew neckline with a narrow folded binding in the same ribbed fabric.
1 region
x 0.17 · y 0.17 · w 0.67 · h 0.18 (high)
Shoulder strapsWide sleeveless shoulder straps that continue the ribbed knit texture, cut straight from the neckline to the armhole.
2 regions
x 0.05 · y 0.18 · w 0.18 · h 0.24 (high); x 0.78 · y 0.18 · w 0.17 · h 0.27 (high)
Ribbed textureNarrow vertical ribs running continuously across the front panel; texture visible as fine raised lines creating a linear pattern.
1 region
x 0.18 · y 0.30 · w 0.64 · h 0.56 (high)
Front curved seamsVertical curved seam lines visible near the sides of the front panel, angling inward from the armhole toward the lower torso.
2 regions
x 0.02 · y 0.34 · w 0.25 · h 0.50 (high); x 0.73 · y 0.34 · w 0.25 · h 0.50 (high)
Fabric appearanceKnit fabric with a subtle heathered look from interwoven lighter fibers, appearing matte with no visible sheen.
1 region
x 0.18 · y 0.30 · w 0.64 · h 0.56 (high)
Visible portion of modelMale model's upper chest, neck and part of the face turned to the right, showing how the tank fits across the shoulders and chest.
1 region
x 0.00 · y 0.00 · w 1.00 · h 0.72 (high)
Other
Studio product photo cropped to a close-up of the model against a plain light background with soft, even lighting and minimal shadow.
BackgroundPlain light gray to off-white seamless studio background that is uniform and uncluttered.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high)
Shot compositionTight crop framing the model from upper chest to top of head, model turned three-quarters to the right; tank centered in the frame.
Lighting and shadowSoft, diffuse lighting from the front-left producing gentle shadows along the right side of the model's face and under the jaw.
Colors
charcoal gray· main body#4B4B4C
03: Product
Rear view of a slim-fit sleeveless ribbed tank top in a dark charcoal gray with visible scooped neckline and armhole bindings; vertical narrow ribs run across the fabric and the hem sits at the hips.
SilhouetteRear-facing sleeveless tank with a scooped neckline, narrow shoulder straps and a straight hem that rests at the wearer’s hips.
1 region
x 0.18 · y 0.12 · w 0.64 · h 0.72 (high)
Fabric textureFine vertical ribbed knit pattern visible across the entire back panel, giving a subtly textured appearance.
1 region
x 0.20 · y 0.16 · w 0.60 · h 0.60 (high)
Color and finishEven dark charcoal gray color with a matte knit finish across the body of the tank.
1 region
x 0.20 · y 0.16 · w 0.60 · h 0.60 (high)
Seam and edge detailVisible narrow binding around the neckline and armholes and a single-stitched hem at the bottom edge.
2 regions
x 0.20 · y 0.12 · w 0.60 · h 0.18 (high); x 0.20 · y 0.74 · w 0.60 · h 0.10 (high)
FitClose to the body with slight horizontal pulling lines visible near the lower back, indicating a snug fit.
1 region
x 0.30 · y 0.44 · w 0.40 · h 0.24 (medium)
Other
Studio shot showing a rear view of a model wearing the tank against a plain light gray backdrop; model right shoulder has a small tattoo with partially legible text.
Background and lightingPlain light gray seamless background with soft, even studio lighting and minimal shadows.
Model poseModel standing with back to camera and head turned to the right, arms relaxed at sides.
1 region
x 0.12 · y 0.04 · w 0.76 · h 0.92 (high)
Visible tattoo text“picking away”Partial
1 region
x 0.62 · y 0.16 · w 0.16 · h 0.10 (medium)
Clothing not part of productBlack pants visible from the waist down; not described as product in this image context.
1 region
x 0.28 · y 0.78 · w 0.44 · h 0.20 (high)
Colors
charcoal gray· body#4D4C52

Documents & Data

Customer Reviews

1 total

1 reviews · out of 5

Good quàlity

★★★★★Denise H.March 26, 2026

This is a beautiful tank top with great quality fabric. It gives a fitted look and is thicker than the normal tank.

Q&A

4 answered

How does the 'muscle fit' compare to a standard slim fit in terms of chest and shoulder measurements?: Muscle fit is tighter through the chest and shoulders compared to standard slim fit, with a more tapered armhole and closer body-hugging silhouette. It's designed to emphasize upper body musculature, so if you prefer less compression in the chest, a slim fit would be roomier.
Does the ribbed fabric lose its shape or stretch out after repeated wear and washing?: The ribbed fabric is made of 69% polyester, 26% rayon, and 5% spandex, and the rib knit structure itself provides good crosswise stretch and recovery [1]. With proper care (cold wash, low heat dry), it should maintain its shape and not stretch out permanently. The spandex content helps the fabric snap back after wearing.
Can you confirm the fabric thickness and opacity—is it sheer or fully opaque?: The product data does not specify GSM or opacity, but based on the blend (polyester/rayon/spandex) and ribbed construction, this tank is likely medium-weight and not sheer. Rib knits tend to be denser, and the dark Grey color is generally opaque. For the White variant, we recommend checking customer photos as lighter colors can be slightly more translucent under bright light.
How does the bustier seaming affect the fit for someone with a broader or narrower waist?: The bustier seaming is designed to contour the waist by using curved seams that cinch inward, creating an hourglass shape. For a broader waist, the seaming may feel snug but still flattering due to the stretch in the fabric. For a narrower waist, it will hug closely without excess fabric. The muscle fit overall is snug through the torso, so the effect is most noticeable on those with a defined waist-to-hip ratio.

Provenance

Merchant Link: https://www.simons.ca/en/men-clothing/t-shirts-tanks/tanks/bustier-insert-ribbed-tank-imported-from-seoul--17886-26101?colourId=0
Updated: July 31, 2026