How does the London fit (semi-slim) compare to typical US suit fits? For example, is it similar to a slim or regular fit from other brands?

The London fit is a semi-slim cut that narrows at the waist with regular sleeves. It's most similar to a slim fit from US brands — not as aggressive as a super-slim, but trimmer than a classic regular fit.

What is the weight of the Super 110 wool? Is it suitable for year-round wear or more for specific seasons?

The specific weight of the Super 110 wool is not listed, but Super 110 refers to the fineness of the wool fibers, not the fabric weight. Generally, Super 110s wool is lightweight and breathable, making it suitable for spring, fall, and air-conditioned settings, but it may not be warm enough for harsh winters.

Do the 38-48 REG sizes correspond to US chest measurements? If someone wears a 40R in another brand, should they order the same size?

Yes, the 38-48 REG sizes correspond to US chest measurements in inches. For example, size 40 is designed for a 40-inch chest. If you wear a 40R in another brand, ordering a size 40-REG in this jacket should fit similarly.

Le 31

Marzotto Wool Pinstripe Suit Jacket London Fit - Semi-Slim

CA$199.95CA$475.00-58%

In Stock

This is a Marzotto wool pinstripe suit jacket in London fit (semi-slim), designed in Canada by Le 31 by Simons. It features a single-breasted two-button construction, notch lapels, piped flap pockets, side vents, and a thin satiny lining. The jacket is made from Super 110 pure wool by Marzotto and pairs with matching trousers (style 20966-224748).

Material: Super 110 pure wool by Marzotto
Gender: male
Style: formal, classic, slim-fit
Category: Apparel & Accessories > Clothing > Suits > Pant Suits

Color

Navy/Midnight Blue

Size

38-REG.40-REG.42-REG.44-REG.46-REG.48-REG.

View on merchant site JSON

Specifications

Semi-slim fit pinstripe suit jacket in luxurious Italian wool by Marzotto.

Piped flap pockets, side vents, thin satiny lining.

Material: Super 110 pure wool by Marzotto
Style: formal, classic, slim-fit
Occasion: formal, wedding
Gender: male
Age Group: adult
Condition: new
Category: Apparel & Accessories > Clothing > Suits > Pant Suits

Additional Attributes

London Fit - Semi-Slim silhouette
pinstripe pattern
piped flap pockets
side vents
Super 110 pure wool from Marzotto
thin satiny lining
matching pant available
exclusive designed in Canada

Product Insights

The Marzotto Wool Pinstripe Suit Jacket by Le 31, in a semi-slim London fit, offers a Super 110 wool jacket at a steep discount (58% off at $199.95) that undercuts entry-level Suitsupply. Its fine pinstripes read as solid navy from a distance, allowing it to work as a full suit or as separates dressed down for smart-casual, paired with brown or oxblood shoes. The lightweight, breathable fabric is ideal for spring, fall, and air-conditioned environments but not harsh winters. The semi-slim fit narrows at the waist with regular sleeves, similar to US slim fit, and size 40-REG corresponds to a 40-inch chest. Construction includes dual side vents for ease when seated and pocket access, and a wide wooden hanger is recommended to preserve shoulder shape. Care involves limited dry cleaning, gentle steaming, and rotation to protect fine fibers.

Verified claims

Value: Sale at $199.95, 58% off, Marzotto Super 110 wool jacket undercuts entry-level Suitsupply.
Versatility: Jacket works as full suit or separates; also dressable down for smart-casual.
Styling: Fine pinstripe reads as solid; navy pairs with brown/oxblood for modern look.
Fit: Semi-slim London fit narrows at waist, regular sleeves; similar to US slim fit.
Sizing: Size 40-REG corresponds to 40-inch chest, like a 40R in other brands.
Construction: Wide wooden hanger preserves shoulder shape; side vents ease sitting and pocket access.
Seasonal wear: Super 110's 18-micron fibers make the jacket lightweight and breathable, ideal for spring/fall/AC but not harsh winter.
Pattern subtlety: Pinstripes are so fine they read as solid navy from a distance.
Seasonal use: Lightweight Super 110s wool for spring, fall, and AC; not for harsh winters.
Hanger: Structured shoulder needs a wide, contoured wooden hanger to prevent dimpling.
Leather pairing: Dark brown or oxblood leather shoes and belt complement this jacket.
Fabric weight: Lightweight Super 110s wool is breathable, suitable for spring, fall, and air-conditioned settings.
Functional details: Dual side vents keep the jacket's line clean when sitting and allow hands-in-pockets.
Side vents: Dual side vents keep the jacket's line clean when seated and allow hands in pockets.
Storage: Store in a breathable garment bag with natural moth deterrent and on a contoured wooden hanger.
Wrinkle removal: Release wrinkles with gentle steam, never direct ironing.
Dry cleaning: Limit dry cleaning to once or twice a season, only when soiled.
Fabric care: Super 110 fibers are fine and prone to abrasion; rotate wearing, brush after use, and reserve for mild weather.

Product record

Title: Marzotto Wool Pinstripe Suit Jacket London Fit - Semi-Slim
Brand: Le 31
Price: 475 CAD
Availability: In stock

Deep Research

Caring for Super 110 wool

Moths are drawn to the soft, untouched protein fibers of a Super 110 wool jacket, and moth balls' napthalene can embed odor into the fine weave — storing the jacket with natural cedar blocks or dried lavender sachets in a breathable garment bag deters larvae while keeping the wool fresh and wearable without chemical residue.
A wide, contoured wooden hanger that fills the jacket's shoulder is essential for the London fit's structured shape; the semi-slim cut relies on a defined shoulder line, and a properly sized hanger prevents the dimpling and distorted drape that narrow wire or plastic hangers create over time.
To avoid crushing the delicate pinstripe weave and developing a telltale shine, wrinkles should be released with gentle steam — either from a handheld steamer held a few inches away or by hanging the jacket in a steamy bathroom — rather than direct ironing, which can flatten the wool's natural resilience and permanently mar the surface.
The fine fibers and lightweight weave of Super 110 wool are sensitive to the perchloroethylene used in standard dry cleaning, so limiting professional cleanings to once or twice a season — and only when visibly soiled — prevents chemical degradation that can cause the fabric to lose its natural sheen and tensile strength.
Super 110 wool fibers measure around 18 microns in diameter — noticeably finer than standard wool's 20+ microns — which produces the jacket's soft hand and fluid drape but also makes the fabric more susceptible to surface abrasion; rotating this jacket with other suits and using a soft garment brush after each wear reduces friction and keeps the pinstripe surface crisp longer.

Styling a pinstripe suit jacket

As a genuine pinstripe rather than a chalk stripe, the pattern's fine, close-set lines read as a textured solid from a distance, avoiding the costumey 'gangster' risk and making it far easier to integrate into a contemporary wardrobe than bolder stripes.
Sold as a separate with a matching pant available, the jacket works as a full pinstripe suit for boardroom formality but its modern versatility shines when 'broken' with solid charcoal, mid-grey, or cream worsted trousers, which dials down the corporate edge without sacrificing polish.
The semi-slim London fit, which narrows at the waist, updates the pinstripe silhouette from the traditional boxy cut to a sharper shape that pairs naturally with today's slim-leg trousers, a critical detail for wearing pinstripes outside of conservative business settings.
The vertical pinstripes create an elongating optical effect that is amplified by a monochromatic shirt-and-tie combination (e.g., pale blue shirt with navy tie), a practical styling trick for men under 5'10" seeking a taller, leaner silhouette.
Dual side vents, a marker of contemporary tailoring, keep the jacket's line clean when sitting and allow hands-in-pockets without disrupting the drape, making the jacket more functional for long dinners or receptions.
The navy ground pairs exceptionally well with dark brown or oxblood leather shoes and belt, a combination that softens the jacket's formality and feels more modern than the standard black-accessories with navy pinstripe.
The Super 110s wool's lightweight drape allows the jacket to be dressed down over a fine-gauge merino turtleneck and dark denim for a smart-casual office-to-evening look, a styling move that leverages the pinstripe's formality without appearing stiff.

Value compared to other wool suit jackets

The jacket originally sold for $475 CAD, positioning it in the same semi-premium tier as entry-level suits from Suitsupply; at $199.95, it effectively offers a tailored-cloth garment at a price point usually occupied by fused-construction blazers from department stores.

Image Analysis

3 images

01: Product
Male model wearing a dark pinstripe suit jacket and matching trousers, paired with a white dress shirt and dark solid tie; left hand in pocket, right hand relaxed at side, visible watch at left wrist.
Jacket silhouetteSingle-breasted, two-button suit jacket with notch lapels and a chest welt pocket; jacket worn closed at the top button and shows a tailored, semi-slim silhouette on the model.
1 region
x 0.18 · y 0.12 · w 0.45 · h 0.64 (high)
Jacket fabric patternDark navy fabric with subtle vertical pinstripes visible across the jacket front and sleeves.
1 region
x 0.18 · y 0.12 · w 0.45 · h 0.64 (high)
Lapels and buttoningNotch lapels with left and right lapel rolls visible; two front buttons with the top button fastened and the lower button unfastened.
1 region
x 0.33 · y 0.28 · w 0.28 · h 0.24 (high)
Chest pocketWelt chest pocket on the left breast, empty and lying flat.
1 region
x 0.42 · y 0.26 · w 0.11 · h 0.08 (high)
Sleeve detailsRight sleeve shows a smooth fit with faint pinstripe continuation; left sleeve cuff is visible with white shirt cuff extending past the jacket sleeve and three visible jacket sleeve buttons.
2 regions
x 0.52 · y 0.44 · w 0.18 · h 0.30 (high); x 0.32 · y 0.62 · w 0.14 · h 0.16 (high)
TrousersMatching dark navy pinstripe suit trousers that align visually with the jacket fabric and pattern.
1 region
x 0.22 · y 0.64 · w 0.38 · h 0.34 (high)
Dress shirtWhite dress shirt with a crisp point collar visible under the jacket and extending at the cuffs.
2 regions
x 0.32 · y 0.18 · w 0.22 · h 0.18 (high); x 0.50 · y 0.66 · w 0.10 · h 0.10 (high)
TieSolid dark navy tie, knot tightened at the collar and extending down beneath the jacket opening.
1 region
x 0.38 · y 0.26 · w 0.10 · h 0.40 (high)
BeltDark brown leather belt with a small portion visible above the trousers waistband.
1 region
x 0.36 · y 0.72 · w 0.10 · h 0.06 (medium)
Wrist accessoryMetallic watch visible on the model's left wrist peeking from the shirt cuff.
1 region
x 0.56 · y 0.68 · w 0.07 · h 0.07 (medium)
Other
Studio lifestyle shot with a standing male model against a soft off-white draped backdrop and an abstract wall artwork to the right; even soft lighting and minimal shadows emphasize garment texture.
Shot compositionThree-quarter frontal portrait framing from head to mid-thigh with the model centered slightly left of image center, facing forward.
1 region
x 0.08 · y 0.04 · w 0.84 · h 0.92 (high)
Background elementsOff-white draped fabric on the left and an abstract painting with green and blue brushstrokes on the right.
2 regions
x 0.02 · y 0.02 · w 0.30 · h 0.92 (high); x 0.62 · y 0.06 · w 0.36 · h 0.62 (high)
Model poseModel stands with left hand in trouser pocket and right hand relaxed at side, gaze directed at the camera.
1 region
x 0.20 · y 0.20 · w 0.60 · h 0.72 (high)
Lighting and shadowSoft, diffused studio lighting with gentle shadowing on the model's left side and minimal specular highlights.
Colors
dark navy with pinstripes· jacket#222532dark navy with pinstripes· trousers#1B1D29white· shirtdeep navy· tie#161A29dark brown· belt#191C25metallic silver· watch#CED1CB
02: Product
Front-facing full suit on a standing model: single-breasted dark pinstripe jacket with matching trousers, white dress shirt, navy tie, and black loafers. Vertical light pinstripes visible across jacket and trousers; jacket shows notch lapels, two front buttons, flap pockets and a welt chest pocket.
Jacket silhouetteSingle-breasted suit jacket with notch lapels and two visible front buttons; jacket length ends just below the hip on the model.
1 region
x 0.22 · y 0.07 · w 0.56 · h 0.36 (high)
Jacket pocketsPair of horizontal flap pockets on the lower front and a welt chest pocket on the left breast.
1 region
x 0.26 · y 0.24 · w 0.48 · h 0.20 (high)
Fabric patternDark suit fabric with regularly spaced vertical light pinstripes visible across jacket and trousers.
1 region
x 0.22 · y 0.07 · w 0.56 · h 0.80 (high)
Trousers cutMatching suit trousers with a straight-to-tapered leg that falls to the top of the shoes.
1 region
x 0.27 · y 0.43 · w 0.46 · h 0.44 (high)
Shirt visibleWhite dress shirt visible at collar and cuffs beneath the jacket.
3 regions
x 0.36 · y 0.10 · w 0.28 · h 0.14 (high); x 0.24 · y 0.34 · w 0.08 · h 0.06 (medium); x 0.68 · y 0.34 · w 0.08 · h 0.06 (medium)
TieSolid dark navy tie worn under the jacket's lapels, visible down the center of the chest.
1 region
x 0.45 · y 0.14 · w 0.12 · h 0.24 (high)
Buttons detailTwo visible front jacket buttons, slightly reflective surface.
1 region
x 0.45 · y 0.26 · w 0.10 · h 0.14 (high)
ShoesBlack leather loafers with a polished finish and chunky lug soles.
1 region
x 0.36 · y 0.85 · w 0.28 · h 0.12 (high)
Other
Studio full-body front view on a model against a white seamless background with even, soft lighting and minimal shadowing beneath the feet.
Shot compositionFull-body frontal shot of a standing model centered in the frame, showing the suit from head to shoes with ample white space around.
1 region
x 0.17 · y 0.03 · w 0.66 · h 0.94 (high)
Background and lightingUniform white seamless background with soft, even lighting and a faint floor shadow under the shoes.
Image qualitySharp, high-resolution product image with clear fabric texture and visible pinstripe detail.
Colors
dark navy pinstripe· jacket and trousers fabric#18171Dbright white· shirt#CDCBD2navy blue· tie#2A2D4Cgloss black· shoes#0D0D0E
03: Product
Rear view of a dark navy pinstripe suit jacket worn by a model, showing the jacket back, shoulders, sleeves and the top of matching trousers.
Back panelFlat back panel of a suit jacket with evenly spaced vertical pinstripes running from the shoulders to the hem; no visible rear pleats or decorative stitching.
1 region
x 0.14 · y 0.12 · w 0.72 · h 0.64 (high)
Shoulder constructionStructured shoulders with a smooth shoulder seam; sleeve heads set in with slight tailoring at the armhole.
1 region
x 0.14 · y 0.12 · w 0.72 · h 0.20 (high)
Sleeve detailLong sleeves reaching the wrists with visible cuff edge and a small row of sleeve buttons on each cuff; slight break where sleeves meet the hands.
2 regions
x 0.12 · y 0.52 · w 0.18 · h 0.34 (high); x 0.70 · y 0.52 · w 0.18 · h 0.34 (high)
Hem and cutStraight hem at the jacket bottom that falls over the top of matching trousers; centre back appears smooth with no visible vent opening.
1 region
x 0.20 · y 0.60 · w 0.60 · h 0.30 (medium)
Matching trousers visibleTop of matching pinstripe trousers visible below the jacket hem, aligned with the jacket fabric and stripe pattern.
1 region
x 0.24 · y 0.80 · w 0.52 · h 0.18 (high)
Other
Studio rear-shot of a model on a white seamless background showing the back of the suit jacket; soft even lighting with minimal shadows.
Shot compositionVertical rear-facing studio shot centered on the model, crop shows head to mid-thigh with the jacket fully visible from the back.
Background and lightingPlain white seamless background with soft, even lighting and faint shadowing near the model edges.
Model presenceA model wears the jacket and matching trousers; the model faces away from the camera so only the back and profile of the head are visible.
1 region
x 0.34 · y 0.00 · w 0.32 · h 0.20 (high)
Image qualityHigh-resolution image with clear fabric texture and visible pinstripe detail; no blur or compression artifacts apparent.
Colors
dark navy· jacket main fabric#211F2Alight grey pinstripe· pinstripe lines

Documents & Data

Q&A

3 answered

How does the London fit (semi-slim) compare to typical US suit fits? For example, is it similar to a slim or regular fit from other brands?: The London fit is a semi-slim cut that narrows at the waist with regular sleeves [1]. It's most similar to a slim fit from US brands — not as aggressive as a super-slim, but trimmer than a classic regular fit.
What is the weight of the Super 110 wool? Is it suitable for year-round wear or more for specific seasons?: The specific weight of the Super 110 wool is not listed, but Super 110 refers to the fineness of the wool fibers, not the fabric weight [1]. Generally, Super 110s wool is lightweight and breathable, making it suitable for spring, fall, and air-conditioned settings, but it may not be warm enough for harsh winters.
Do the 38-48 REG sizes correspond to US chest measurements? If someone wears a 40R in another brand, should they order the same size?: Yes, the 38-48 REG sizes correspond to US chest measurements in inches. For example, size 40 is designed for a 40-inch chest. If you wear a 40R in another brand, ordering a size 40-REG in this jacket should fit similarly [1].

Provenance

Merchant Link: https://www.simons.ca/en/men-clothing/suits/suit-separates/marzotto-wool-pinstripe-suit-jacket-london-fit-semi-slim--20966-224744?colourId=0
Updated: July 31, 2026