
Le17septembre
Flowy Long-Sleeve T-Shirt
The Flowy Long-Sleeve T-Shirt by LE17SEPTEMBRE is a black crew-neck long-sleeve T-shirt made from a lightweight, stretch jersey in a rayon and acrylic blend. It has a relaxed, slightly oversized fit with dropped shoulders, extended sleeves that reach past the wrist, and a straight hem, and is intended for casual wear as a standalone top or layering piece. The garment is made in South Korea.
- Material
- rayon and acrylic blend
- Style
- casual, minimal, relaxed-fit, elevated-basics, classic
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Color
Specifications
Minimalist long-sleeve t-shirt in a flowy, stretchy rayon-acrylic jersey with a relaxed fit.
Flowy stretch jersey, supple lightweight feel, relaxed fit, minimalist design, made in Korea.
- Material
- rayon and acrylic blend
- Secondary
- acrylic
- Style
- casual, minimal, relaxed-fit, elevated-basics, classic
- Occasion
- everyday, casual, weekend
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Additional Attributes
- long-sleeve t-shirt silhouette
- flowy stretch jersey fabric
- rayon and acrylic blend
- supple, lightweight hand feel
- relaxed fit
- minimalist no-frills design
- smooth jersey knit with stretch
- comfortable casual everyday piece
- made in South Korea
- designed by Seoul-based label LE17SEPTEMBRE
- understated, quietly confident aesthetic
- versatile long-sleeve layering style
Product Insights
Relaxed, boxy fit with dropped shoulders. Men's cut in XS–M only; no men's large equivalent. 55% rayon, 34% acrylic, 6% wool, 5% spandex. Dry clean only: do not wash, bleach or tumble dry; ironing allowed. Premium price for a dry-clean-only basic.
Verified claims
- fit
- Relaxed, boxy fit with dropped shoulders.
- sizing
- Men's cut in XS–M only; no men's large equivalent.
- size_range
- Three consecutive sizes, all in stock at the same price.
- material
- 55% rayon, 34% acrylic, 6% wool, 5% spandex.
- fabric_hand
- Soft, lightweight, moisture-absorbent rayon blend with fluid drape.
- stretch
- Jersey knit stretches widthwise for easy movement.
- breathability
- Breathable open knit, but relatively sheer and snag-prone.
- wrinkling
- Rayon content means the shirt can wrinkle.
- care
- Dry clean only: do not wash, bleach or tumble dry; ironing allowed.
- care_rationale
- Rayon's low wet strength is why dry cleaning is required.
- stain_care
- Moisture can cause water spots or dye migration.
- durability
- Acrylic blend may pill at high-friction underarms over time.
- neckline
- Shallow crew neckline with a narrow ribbed band.
- sleeves
- Long sleeves run past the wrist with relaxed cuffs.
- hem
- Straight hem falls to upper hip, slightly lower at back.
- styling
- Minimalist, logo-free black tee for understated styling.
- use_cases
- Best for casual, layered, relaxed everyday wear.
- brand_context
- Seoul label Le17septembre is known for understated, architecture-inspired minimalism.
- value
- Premium price for a dry-clean-only basic.
- composition_variance
- Composition can vary slightly by colourway.
Product record
- Title
- Flowy Long-Sleeve T-Shirt
- Brand
- Le17septembre
- Price
- 225 CAD
- Availability
- In stock
Buying Guide
0 comparisons · 1 sourceUses
Everyday casual layering piece
A minimalist long-sleeve tee made from a supple, lightweight, and comfortable rayon blend, positioned by the retailer as a casual must-have for everyday wear.[1]
Image Analysis
3 images- 01

Product
Front-facing black long-sleeve T-shirt on a model with a relaxed, slightly oversized silhouette, crew neckline, long sleeves extending past the wrists, and a straight hem that falls to the hips.
- Overall silhouetteRelaxed, boxy long-sleeve T-shirt with a loose drape across the torso and slight extra fabric at the sides indicating an oversized cut.
1 region
x 0.06 · y 0.12 · w 0.88 · h 0.66 (high) - NecklineShallow crew neckline with a narrow finished band that sits close to the base of the model's neck.
1 region
x 0.30 · y 0.04 · w 0.40 · h 0.10 (high) - SleevesLong straight sleeves with a relaxed fit; cuffs are not fitted and the sleeve length extends past the wrists so the hands are partly covered.
2 regions
x 0.06 · y 0.18 · w 0.34 · h 0.66 (high); x 0.60 · y 0.18 · w 0.30 · h 0.64 (high) - HemStraight untucked hem that sits at the upper hip; hemline appears finished with a narrow stitch visible against the fabric drape.
1 region
x 0.18 · y 0.62 · w 0.64 · h 0.14 (high) - Fabric appearanceSoft, lightweight knit with a smooth, even surface and subtle vertical drape lines; no visible pattern or texture variation.
1 region
x 0.20 · y 0.18 · w 0.60 · h 0.44 (high) - Visible construction detailShoulder seams follow a natural shoulder line without visible topstitching; no visible buttons, pockets, or additional closures on the front.
Other
Studio product shot showing the upper body of a model against a plain white background with even lighting and minimal shadow; the model is turned slightly to their right and image is cropped around mid-thigh.
- Background and lightingNeutral white background with soft, even studio lighting and very light shadowing under the model's arms and at the lower frame.
- Model pose and cropModel stands facing forward with head turned to the right; image cropped mid-thigh so lower legs are not visible and hands are partially visible.
1 region
x 0.16 · y 0.00 · w 0.68 · h 1.00 (high) - Image qualityHigh-resolution, well-focused image with clear edges and no visible compression artifacts.
Colors
black· shirt body- Overall silhouetteRelaxed, boxy long-sleeve T-shirt with a loose drape across the torso and slight extra fabric at the sides indicating an oversized cut.
- 02

Product
Front-facing cropped view of a black long-sleeve crew-neck T-shirt on a model showing neckline, shoulders, sleeves and torso front; fabric appears drapey with soft wrinkles and simple hems; no visible logos or printed text.
- NecklineRound crew neckline with a narrow double-layered band finished with a simple stitched hem.
1 region
x 0.27 · y 0.04 · w 0.47 · h 0.17 (high) - Shoulder and upper chestRelaxed, slightly dropped shoulder seam with smooth drape across the upper chest and soft diagonal fabric folds near the arm junction.
1 region
x 0.03 · y 0.14 · w 0.94 · h 0.25 (medium) - Sleeve constructionLong set-in sleeves with minimal visible cuff construction; sleeves extend to the wrist area and show gentle horizontal wrinkles from arm bend.
2 regions
x 0.02 · y 0.32 · w 0.47 · h 0.47 (high); x 0.47 · y 0.28 · w 0.51 · h 0.46 (high) - Fabric appearanceMatte, fine-knit fabric with soft drape and small, even surface texture; fabric forms natural folds rather than structured creases.
1 region
x 0.12 · y 0.30 · w 0.76 · h 0.52 (medium) - Hem detailLower front hem visible at bottom edge with a straight simple finish and slight lift showing the inner side of the fabric.
1 region
x 0.18 · y 0.86 · w 0.68 · h 0.12 (medium) - Visible branding or printNo visible logos, labels, or printed text on the visible portion of the garment.
- Model hand on sleeveModel's right hand rests across the left forearm, with fingers visible and sleeve pulled slightly over the wrist.
1 region
x 0.56 · y 0.60 · w 0.31 · h 0.22 (high)
Other
Studio product shot cropped at mid-hip showing model torso and head partially; plain white background with even soft lighting and minimal shadows.
- Shot compositionCropped three-quarter frontal view focusing on upper torso, neck and hands; model head partially visible and turned slightly to the right.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundPlain seamless white background with even illumination and no visible props.
- Lighting and shadowSoft, diffused studio lighting producing minimal harsh shadows and gentle shading on fabric folds and model contours.
- Image qualityHigh-resolution, sharp focus on fabric and skin with natural skin texture visible; no motion blur.
Colors
matte black· shirt body- NecklineRound crew neckline with a narrow double-layered band finished with a simple stitched hem.
- 03

Product
Rear three-quarter view of a loose, long-sleeve black knit T-shirt on a model; visible features include a shallow crew neckline, dropped shoulders, long sleeves with extended cuffs, a straight hem, and a faint center-back seam.
- Overall silhouetteLoose, relaxed-fit long-sleeve shirt shown from the back with a dropped-shoulder construction and straight hem that falls below the waistline.
1 region
x 0.05 · y 0.08 · w 0.72 · h 0.82 (high) - NecklineShallow crew neckline visible at the upper rear neckline, finished with a narrow band of the same fabric.
1 region
x 0.24 · y 0.02 · w 0.38 · h 0.12 (high) - Sleeve constructionLong sleeves with dropped shoulder seams; cuffs extend past the wrist and partially cover the hand on the right side of the image.
2 regions
x 0.02 · y 0.22 · w 0.36 · h 0.66 (high); x 0.62 · y 0.36 · w 0.33 · h 0.48 (high) - Center-back seamA faint vertical seam or fold runs down the middle of the back panel from neckline to hem.
1 region
x 0.29 · y 0.12 · w 0.42 · h 0.72 (medium) - Fabric appearanceMatte, lightweight knit texture with a smooth, slightly draping fall; no visible pattern or surface ornamentation.
- Hem finishStraight hem with a narrow stitched edge that sits slightly lower at the back center.
1 region
x 0.12 · y 0.76 · w 0.68 · h 0.18 (high)
Other
Studio product shot on a white background showing a model turned slightly to the right; soft, even studio lighting with minimal shadowing and tight crop that includes part of the head and hands.
- Shot compositionRear three-quarter view of the model, cropped mid-thigh, centered vertically with head near the top edge and right hand visible at the lower right.
1 region
x 0.02 · y 0.00 · w 0.96 · h 0.98 (high) - Model profileModel's right profile is visible with neck and lower jaw shown; hair and ear visible at the top right.
1 region
x 0.64 · y 0.00 · w 0.33 · h 0.18 (high) - Supporting garmentDark gray textured pants visible below the shirt hem but not presented as the product.
1 region
x 0.18 · y 0.82 · w 0.66 · h 0.16 (high) - Lighting and shadowEven studio lighting with soft shadows mainly beneath the hem and slight shading along the garment folds; background is solid white.
Colors
black· body and sleeves#0E0C12- Overall silhouetteLoose, relaxed-fit long-sleeve shirt shown from the back with a dropped-shoulder construction and straight hem that falls below the waistline.
Brand PDP Lookup
- Brand
- Le17septembre
SOFT ESSENTIAL T-SHIRT [BLACK]