
Le 31
Soft Knit Vest
The Soft Knit Vest by Le 31 Simons is a sleeveless, V-neck knit vest designed in Canada for layering over shirts or tops. It is made from fine LENZING ECOVERO viscose, a certified renewable wood-based fiber produced using an eco-friendly process. The vest features a smooth knit body with ribbed trim at the neckline, armholes, and straight hem, and is available in a solid black color.
- Material
- LENZING ECOVERO viscose
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Color
Size
Specifications
Ultra comfortable knit vest with V-neck, made from eco-friendly LENZING ECOVERO viscose, perfect for layering.
V-neck design, fine knit weave, eco-friendly LENZING ECOVERO viscose, renewable wood source.
- Material
- LENZING ECOVERO viscose
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Additional Attributes
- V neck
- ultra comfortable
- timeless design
- layering piece
- fine LENZING ECOVERO viscose
- knit weave
- eco-friendly process
- made from certified renewable wood
- designed in Canada
Product Insights
The Soft Knit Vest by Le 31 is a $50 EU Ecolabel-certified LENZING ECOVERO viscose V-neck pullover that delivers a smooth, soft hand and fluid drape, layering cleanly under blazers for business casual looks, though its close fit and tight armholes require thin layers or sizing up, and proper care—cold wash, flat dry, steam—preserves its deep color and shape.
Verified claims
- Eco-credentials
- EU Ecolabel-certified, traceable, and exclusive to Simons' Canadian-designed Le 31 line.
- Price comparison
- At $50 CAD, it's about $4 less than a comparable recycled-polyester vest.
- Sizing
- Available in S to XXL; Le 31 sizing consistent; size up for layering; 6'170 lbs wears M.
- Fit
- Close fit with tight armholes; best for thin layers; hem may flare; ideal under blazers.
- Hand feel
- Smooth, soft hand with stretch that feels lightweight and close-fitting; some buyers size up.
- Drape and finish
- Fluid, non-starchy drape with subtle lustre and deep color; holds shape under a blazer without bulk.
- Layering
- Layers cleanly under a blazer without sleeve bunching, fitting business casual and smart-casual looks.
- Care
- Wash cold, press water out, flat dry, and steam to keep shape.
- Design
- V-neck pullover works for business casual and layering under blazers.
- Fiber sustainability
- LENZING ECOVERO viscose is EU Ecolabel certified and traceable via fiber marker.
- Brand reliability
- Fit is consistent across Le 31 tops, and the vest is a frequent gift purchase for style-conscious relatives.
- Dye quality
- The 82% LENZING ECOVERO viscose blend yields deep, even color with subtle lustre and integral fade resistance with proper care.
- Traceability
- ECOVERO fiber marker verifies eco-friendly dye chain.
- Gift appeal
- Buyers give this vest as a gift for its softness and classic style.
- Visual anchor
- Solid black V-neck acts as a visual anchor that adds contrast to layered outfits.
- Positioning
- Fine-knit V-neck vest embodies GQ's definition of business casual.
- Comfort
- Buyers report the vest is so comfortable that they purchase it in multiple colors.
- Softness
- The LENZING ECOVERO knit is smooth and soft, avoiding wool's itch, and buyers say its softness makes it a go-to gift.
Product record
- Title
- Soft Knit Vest
- Brand
- Le 31
- Price
- 50 CAD
- Availability
- In stock
Deep Research
Layering a fine knit vest
- A fine-knit vest like this one adds a layer of warmth without the sleeve bulk of a full sweater, so when worn under a blazer or sport coat the arms move freely and the jacket's sleeves hang cleanly — no pulling or bunching at the shoulders.
- GQ calls a sweater vest 'the definition of business casual' because it signals effort without formality — a fine-knit version in black slides into that role seamlessly, dressing up a crisp white shirt and chinos or adding a layer of polish under a suit jacket without reading as fussy or formal.
- As a mid-layer in the classic three-layer system, the vest's fine knit sits close to the body over a dress shirt and under an outer layer without creating the excessive bulk that disrupts the silhouette of a tailored jacket.
- This vest's solid black V-neck acts as a visual anchor that breaks up the expanse of a dress shirt and tie, adding a point of contrast that makes any outfit — from chinos and an oxford to a full suit — feel more deliberate and put-together.
The story behind Le 31 at Simons
- The Globalnews spotlight on Simons emphasizes its commitment to 'shop consciously' and offering 'accessible, high-quality pieces' — for Le 31, this means the use of LENZING ECOVERO viscose is not a one-off green claim but part of a retailer-wide ethos that consistently prioritizes quality materials and responsible sourcing even at entry-level price points.
- The explicit 'exclusive designed in Canada' tag — visible on Le 31 items across retailers like Lyst — means this vest is not a generic import but a Simons-owned creative expression; for buyers in Canada or those valuing domestic design, that adds a layer of distinctiveness without the markup of a standalone designer label.
- Le 31 is housed under Simons, a retailer founded in 1840 that has since become a Canadian style institution — the brand is not a pop-up label but part of a 180+ year retail lineage that has built a reputation for curated, accessible quality and promoting Canadian design, which means the $50 vest is underpinned by a long-standing retail perspective rather than a trend-driven launch.
- Across the brand, Le 31 calls out specific fabrications like LENZING ECOVERO and European cotton from Sidogras — for a knit vest at $50, this signals that the brand's design process includes intentional fibre selection rather than anonymous commodity textiles, and that the vest's soft hand is a result of that curation.
Finding your size and the knit's stretch
- Le 31 is Simons' in-house men's label with classic North American cuts and low fit variation across tops, so the size Medium you wear in other Le 31 sweaters or tees translates directly to this vest — there is no need to second-guess sizing between pieces.
Care that keeps the vest soft
- Gently pressing out excess water between clean towels instead of wringing avoids tearing the delicate wet viscose fibers — wringing when saturated can permanently distort the knit’s shape, cause micro-tears, and lead to irreversible wrinkling, so using a pressing motion preserves the garment’s structure for longer.
- Washing the vest at 30°C or below on a delicate or handwash cycle prevents the fiber swelling and up to 5% shrinkage that viscose experiences when heated or agitated; LENZING ECOVERO viscose temporarily tightens when wet but returns to its original softness and shape if handled gently, so a cool, short wash without heavy co-wash items preserves the fine knit's integrity.
- Laying the vest flat on a towel and gently reshaping it while damp avoids the stretching and distortion that hanging would cause when the fibers are saturated and weakest — air drying away from direct sunlight or radiators also prevents the heat-induced shrinkage that can permanently set wrinkles in viscose.
- Because LENZING ECOVERO fabric contracts during washing and drying, steaming or ironing on low heat inside out relaxes the fibers and restores the supple drape — without this post-dry step, the vest can feel stiff and appear puckered, so a quick steam or press after every wash maintains its fluid, luxurious feel.
- Turning the vest inside out and placing it in a mesh laundry bag for machine washing shields the fine knit from abrasion and pilling — viscose is especially prone to friction damage when wet, and this simple routine keeps the outer surface smooth and new-looking through repeated washes.
- Using a mild liquid detergent without bleach or fabric softener conserves the viscose’s natural silk-like hand and moisture-wicking breathability — fabric softeners coat the fibers and reduce their ability to absorb moisture, while bleach weakens the already fragile wet fibers, leading to premature thinning and colour loss.
How ECOVERO viscose feels and performs
- Viscose fibers hold color deeply, so the Pine/Bottle Green and Navy/Midnight Blue variants achieve a vibrant, garment-dyed saturation that looks even and substantial — unusual in lightweight knits that can otherwise read as sheer and washed-out.
- ECOVERO viscose fibers have a characteristic smooth hand that feels comfortably soft against bare skin, so the vest operates as a light outer layer over a tee or on its own without the itch common to wool-blend knits.
- The fiber's excellent drape gives the vest a fluid, non-starchy hang that skims the body rather than standing away, so it layers cleanly under a jacket without adding boxiness — meaningful for a piece that will be worn buttoned over a shirt.
- A low-key natural sheen catches light without appearing slick, lending dark colorways like Black and Chocolate an understated depth that elevates the vest above a basic cotton knit — especially in fine, solid-color weaves where the fabric does the visual work.
- LENZING ECOVERO fibers are manufactured with a physical identification marker that allows end-product verification, so the vest’s eco-story isn’t a hollow claim — it’s backed by a chain-of-custody system that can trace the material back to certified wood sources, a level of transparency that goes beyond a standard hangtag.
Price and quality vs other eco-friendly vests
- As a Le 31 by Simons exclusive designed in Canada, the vest carries a local-design identity that generic DTC eco-vest alternatives cannot claim — for a basic layering piece, that domestic creative origin adds a point of distinction and pride for buyers who favour Canadian design over anonymous global sourcing.
- The fine LENZING ECOVERO viscose knit creates a smooth, silky drape that contrasts sharply with the brushed fleece interior and abrasion-resistant armholes of the Quince recycled-polyester vest — the Le 31 wears like a lightweight sweater rather than technical outerwear, sliding under a jacket with zero bulk.
- At $50 CAD (approximately $36 USD), the Le 31 Soft Knit Vest undercuts the $39.90 USD Quince Sweater-Knit Fleece Vest while exchanging recycled polyester for LENZING ECOVERO viscose — a premium, wood-based fiber that brings a softer hand and lower-impact sourcing, making it the more wallet-friendly entry into eco-conscious layering.
- A clean pullover V-neck without zippered pockets or a full-zip front — unlike the Quince vest’s hardware-heavy design — allows the Le 31 to disappear under an open overshirt or blazer without visible zipper lines, making it the more polished choice for indoor smart-casual layering over outdoor-oriented utility.
Image Analysis
2 images- 01

Product
Sleeveless V-neck knit vest in a solid dark color worn over a white short-sleeve T-shirt; visible ribbed V-neck, armhole trim, and hem band with smooth knit body.
- SilhouetteSleeveless vest with a V-shaped neckline and straight hem, fitted over the torso and ending at the hips.
1 region
x 0.18 · y 0.16 · w 0.64 · h 0.68 (medium) - Neckline trimV-neckline finished with a narrow, ribbed knit trim that follows the V shape.
1 region
x 0.33 · y 0.16 · w 0.34 · h 0.10 (high) - Armhole finishArmholes finished with a narrow ribbed trim, leaving the shoulders exposed.
1 region
x 0.18 · y 0.16 · w 0.64 · h 0.28 (medium) - Hem bandLower hem finished with a wider ribbed band that sits at the model's hips.
1 region
x 0.24 · y 0.70 · w 0.52 · h 0.10 (high) - Knit textureSmooth, fine knit fabric across the body of the vest with no visible pattern or stitch variation.
1 region
x 0.28 · y 0.26 · w 0.44 · h 0.44 (medium) - Color appearanceVest appears as a solid very dark color contrasting with the white T-shirt underneath.
1 region
x 0.18 · y 0.16 · w 0.64 · h 0.68 (medium)
Other
Studio shot of a male model three-quarter facing right against a plain light background with soft even lighting and minimal shadows.
- Model poseMale model standing with head turned slightly to his right and left hand in pocket; right arm relaxed at side.
1 region
x 0.08 · y 0.02 · w 0.84 · h 0.96 (high) - BackgroundUniform light gray or off-white seamless background with no visible props.
- Lighting and shadowsSoft, even studio lighting producing gentle shadows along the model's left side and under the chin.
- Supporting garmentsWhite short-sleeve T-shirt visible under the vest and dark denim jeans visible at the lower frame.
2 regions
x 0.22 · y 0.24 · w 0.56 · h 0.36 (high); x 0.24 · y 0.76 · w 0.48 · h 0.20 (medium)
Colors
very dark black· vest body#0D0D0E- SilhouetteSleeveless vest with a V-shaped neckline and straight hem, fitted over the torso and ending at the hips.
- 02

Product
Rear view of a sleeveless knit vest in solid dark black shown on a model; visible details include ribbed neckline, armhole trim, and ribbed hem.
- Overall silhouetteBack view of a sleeveless, waist-length knit vest with a straight hem and a slightly tapered shoulder line.
1 region
x 0.18 · y 0.12 · w 0.64 · h 0.72 (high) - NecklineLow crew-style neckline finished with a narrow ribbed trim across the back of the neck.
1 region
x 0.35 · y 0.12 · w 0.30 · h 0.06 (high) - Armhole trimArmholes finished with a narrow ribbed knit trim that contrasts subtly in texture from the main body.
2 regions
x 0.18 · y 0.18 · w 0.14 · h 0.20 (high); x 0.68 · y 0.18 · w 0.14 · h 0.20 (high) - Hem detailBottom hem shows a narrow ribbed band that sits at the waist and appears slightly fitted against the model.
1 region
x 0.28 · y 0.72 · w 0.44 · h 0.10 (high) - Material appearanceFine gauge knit with an even, smooth surface and no visible patterning or texture variations across the back panel.
Other
Studio product shot showing the model from the rear against a plain light grey background; model is wearing a white short-sleeve T-shirt under the vest and dark washed jeans.
- Model and stylingMale model shown from the back wearing the vest over a white short-sleeve T-shirt and dark washed jeans; hands relaxed at sides.
1 region
x 0.05 · y 0.08 · w 0.90 · h 0.84 (high) - Background and lightingEven, soft studio lighting with minimal shadows on a seamless light grey background.
- Shot compositionCentered composition with the vest occupying the central vertical axis and the model cropped near mid-thigh.
Colors
black· body#0D0D0E- Overall silhouetteBack view of a sleeveless, waist-length knit vest with a straight hem and a slightly tapered shoulder line.
Documents & Data
Customer Reviews
66 total66 reviews · out of 5
Vneck
Very good quality
Debardeur
Excellent
Good
Good
Beau tricot
Beau tricot
Très bien
Adore la couleur!
Beau et stylé
C’est essentiel pour les journées d’hiver !
Great vest
Great vest
Débardeur
Un beau gris
Débardeur
Juste ce qu'il faut pour porter seul ou sous un veston.
Very good product. Surprise md
Very good product. Surprise md to find the vest there.
Nice vest
Ordered too large
cet item était'' trop petit,
cet item était'' trop petit, je l'ai retourné mais n'a pas été crédité. J'ai été chargée 57. 43$ sur ma carte de crédit.
Belle qualité doux
Belle qualité doux
Très bon service
Très bon service
Cadeau
Pour l’anniversaire d’un oncle qui aura 98 ans en février, parfait pour un frileux
Not too thick, nice sweater
Not too thick, nice sweater !
beau succes
beau succes
Excellent quailty
My husband has several of these and they wash well and are a perfect fit and style for him.
Simple & slick
Fabric is not natural but you don't notice it; wears nicely.
Appréciation
Produit des moeccabe! Prix juste!
Rien de spécial
Ce gilet est sous-dimensionné et bien ajusté. À mon avis, il est préférable de le porter sur un t-shirt ou un polo. En tant que tel, il conviendrait à une tenue décontractée basique.
Xxxx
Xxxx
Très beau produit Texture de
Très beau produit Texture de luxe merci
Great vest, sorry that red
Great vest, sorry that red was not available in my size.
Very nice quality
Colour and texture are quite nice. This is a gift for my son in law.
debardeur
il fait parfaitement
Good quality
Good quality
Super confortable
Super confortable
Débardeur
Super
La couleur est ce à
La couleur est ce à quoi je m’attendais.
Vest for my dad’s birthday
Vest was well received by my dad!
Great Experience
Overall Great Experience from initial order, shipping communication, through to product delivery and product quality…
Ok merci
Ok merci
Beau débardeur mais je ne
Beau débardeur mais je ne sais pas s'il restera beau longtemps...ça reste à voir...
Very soft gift for husband
Very soft gift for husband super price pijnt
Simple. Elegant.
The vest is so comfortable, I bought multiple colors. It’s cut to fit your form and stretches effortlessly for a very comfortable fit, regardless of the occasion. I’m 6’ 1”, 145 lbs and bought the small, it is a perfect fit.
Stretchy and lightweight
Feels great over top of a variety of materials and is stretchy enough to stay in place while you’re moving around
The fit was not good
The fit was not good around the arms
Oui
Oui
Pas d'une qualité à tout
Pas d'une qualité à tout casser, mais fait la job!
super
Il est super doux...confortable et moule bien le corps ... 5 étoile !!!
Léger pour l’été.
Un peu trop long .
Chandail leger à porter pour
Chandail leger à porter pour la saison estivale
Stretchy and soft
Fits perfectly on a variety of different shirts, it’s nice and stretchy and comfortable
Bien fait
La couleur est parfaite
Très confortable
10 sur 10
C'est parfait
C'est parfait
très beau tricot souple
Belle qualité. Mince et pratique pour toutes occasions.
Sexy Fit
I bought this for my athletic built husband and it looks awesome with dress shirt, t-shirt, or even alone. Looks great with jeans, slacks and chinos.
Simple sweater vest
Light weight, versatile piece to add to a wardrobe, soft and cozy
Perfect
Love it, fits perfectly
Fait très bien et belle
Fait très bien et belle qualité de tissus
It is soft and fits
It is soft and fits well.
Commentaires
Commentaires
Débardeur
Achat en ligne
excellent
excellent
Très bon rapport qualité-prix
Très belle qualité pour un prix abordable.
Sweater vest
Sweater vest
Conforme
Conforme
Great quality and fit for the price
Ordered a size M and it fits perfectly (6' 170 lbs).
Bien
Bien, mais il perd rapidement sa forme.
Eco-knit vest
Waistband too loose
me fait belle coupe
me fait belle coupe
Great fit and great quality
Great fit and great quality
Débardeur noir
Très léger et confortable à porter
Très belle qualité
Fait très bien sauf que le bas était trop évasé pour mon homme
Q&A
3 answered- How does this vest fit? Is it true to size or should I size up for layering?
- The vest has a standard fit and is designed for layering — the description notes it's a 'timeless ultra comfortable piece to layer on repeat.'[1] The knit viscose fabric has some natural stretch, so your usual size should work, but if you plan to wear a thick shirt under, sizing up would give a roomier feel.
- How thick is the knit? Is it lightweight for summer or suitable for fall layering?
- The knit is described as 'fine,'[1] which suggests a lightweight fabric. It's ideal for mild weather layering in spring or early fall, but may be too thin for heavy winter use on its own.
- What specific certification does the LENZING ECOVERO viscose hold to confirm its eco-friendly and renewable sourcing?
- The product description states the LENZING ECOVERO viscose is 'made from certified renewable wood produced using an eco-friendly process.'[1] The specific certification for LENZING ECOVERO fibers is the EU Ecolabel, which verifies reduced environmental impact across the lifecycle.