Le 31
Bird's-Eye Knit Washable Pant Straight Fit
These Bertini et Le 31 straight-fit pants are crafted from a stretch viscose-polyester knit with a bird's-eye pattern and an elegant semi-plain navy-and-black finish. They feature a concealed elastic waistband, five-pocket styling, and a finished 33-inch hem, and are machine washable for easy care. Designed for everyday wear, they offer a comfortable straight-leg silhouette with a smooth, tailored look.
- Color
- Navy and black
- Material
- Stretch viscose-polyester knit
- Category
- Apparel & Accessories > Clothing > Pants
Specifications
Navy-and-black knit pants with straight fit and concealed elastic waistband, made from stretch viscose-polyester.
Bird's-eye knit texture, straight fit, 5-pocket design, machine washable
- Color
- Navy and black
- Material
- Stretch viscose-polyester knit
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Pants
Additional Attributes
- Bird's-eye knit texture
- Elegant semi-plain finish
- Straight fit
- Concealed elastic waistband
- 5-pocket design
- Stretch viscose-polyester knit
- Machine washable
- Finished hem
- 33-inch inseam
Product Insights
Le 31's Bird's-Eye Knit Washable Pant is a $89 CAD entry-level tailored straight fit that runs trim, so sizing up improves comfort. The polyester-viscose-spandex knit is thinner than dress trousers but wrinkle-resistant, machine-washable, and breathable via micro-openings. A concealed elastic waistband provides stretch and a smooth front, enabling beltless tucking or casual wear. The navy-black mélange reads as near-solid, pairing with black or navy, while the straight leg works with sneakers or dress shoes. The tradeoff is a lighter fabric that sacrifices traditional trouser weight for cool, fast-drying, low-maintenance versatility.
Verified claims
- Sizing
- Some buyers find the straight fit runs trim or slightly small and benefit from sizing up, while others find their usual size works; the stretch viscose-polyester knit and concealed elastic waistband add forgiveness for in-between sizes.
- Value
- At $89 CAD, this pant is Le 31's entry-level tailored option.
- Fabric
- The knit is thinner than many traditional trousers, and the bird's-eye micro-openings plus polyester content help it stay cool and dry faster than cotton.
- Breathability
- The bird's-eye knit's micro-sized openings give it moderate-to-high air permeability—more than pique and just below full athletic mesh—so it vents warm air while staying opaque and office-appropriate.
- Wrinkle resistance
- The stretch viscose-polyester knit resists wrinkles well and stays neat after packing, according to reviewers of similar Le 31 washable pants.
- Texture
- Subtle raised-dot pattern appears semi-plain at distance and micro-textured up close.
- Material
- The polyester-viscose-spandex blend makes these pants thinner than dress trousers yet wrinkle-resistant and machine washable.
- Formality range
- The five-pocket design keeps the pant approachable for weekends, while the bird's-eye texture, semi-plain finish, and concealed elastic waistband give it a polished, trouser-like look suited to all-day smart-casual and business-casual wear; it is machine washable.
- Waistband flexibility
- Concealed elastic waistband allows tucking without a belt or clean look with a belt.
- Stretch comfort
- Concealed elastic gives inches of stretch for a forgiving fit and all-day comfort with a tailored front.
- Concealed elastic design
- Elastic is channeled internally so the front lies smooth, enabling beltless tucking and a cleaner look.
- Machine washability
- This pant is machine washable, making it a lower-maintenance tailored option than dry-clean-only trousers.
- Drying instructions
- Tumble drying on low is safe; air drying flat preserves shape
- Wash durability
- The polyester-viscose blend resists pilling and fading, and similar Le 31 washable pants hold up well after repeated washing with minimal pilling or color loss.
- Fit
- The straight fit runs trim; many buyers size up for a comfortable fit, though the stretch viscose-polyester knit and concealed elastic waistband let some shoppers stay with their usual size.
- Care
- Machine-washable knit resists pilling and fading, retaining shape.
- Shoe pairing
- Uniform straight leg pairs with both sneakers and dress shoes without bunching.
- Versatility
- Navy-black mélange reads as a near-solid from a distance, making it easy to wear as a dark neutral in monochromatic outfits.
- Styling
- Straight fit works with sneakers and derbies, enabling monochromatic looks from casual to dressy.
- Design details
- Five-pockets and concealed elastic waistband allow polished tuck-in or casual wear.
- Design origin
- Designed in Canada and sold exclusively through Simons, giving the pant a Montreal-based design perspective.
- Softness
- The 41% viscose content gives the knit a soft, slightly silky hand and lets it breathe; wearers describe the pant as 'perfect and light' and 'very comfortable with the stretch,' though the 55% polyester share means it won't feel as airy as an all-cotton or linen pant.
Product record
- Title
- Bird's-Eye Knit Washable Pant Straight Fit
- Brand
- Le 31
- Price
- 89 CAD
- Availability
- In stock
Buying Guide
1 comparison · 10 sourcesUses
Dressy office comfort with easy care
A sharp, dressy pant for office and business-casual settings, with stretch knit fabric for all-day comfort and the convenience of machine washing. Note that the knit is lighter than traditional heavy dress pants, so it may feel thinner than expected, and the trim tailored cut runs tight — many buyers size up for a comfortable fit.[1,2]
Product comparison
Compared within this brand.
| Bird's-Eye Knit Washable Pant Straight Fit: Choose this if you want a sharp, dressy straight-fit pant for office and business-casual wear, with the comfort of a stretch viscose-polyester knit (55% polyester, 41% viscose, 4% spandex), a concealed elastic waistband, five-pocket styling, and machine-washable convenience with a finished 33-inch inseam. A summary of customer reviews notes the trim cut runs small and significantly tighter than other brands, so many buyers need to size up for a comfortable fit. The same summary reports that buyers used to traditional heavy dress pants find the lightweight knit thinner than expected, so it may not provide the heft or warmth some prefer.[2] | Minimalist Washable Pant Berlin Fit - Straight: Choose this if you want a travel-friendly tailored pant you can machine wash and skip dry cleaning. The Berlin fit offers a straight leg with regular fit through the thigh and regular rise, a flat front with pressed center creases, slanted side pockets, and button-closed back welt pockets in a stretch polyester-viscose fabric (61% recycled polyester) with a smooth matte finish. Note the pant ships with an unfinished hem, so plan to use the free in-store hemming service to get your length.[3,4,5,6] | Washable Soft Twill Pant Berlin Fit - Straight: Choose this if you want a machine-washable, easy-care tailored pant for travel, cut in the Berlin fit with a straight leg, regular fit through the thigh and regular rise. The soft stretch twill blends 65% recycled-bottle polyester with 33% rayon and 2% spandex, with a flat front, pressed creases, slanted side pockets and buttoned welt back pockets. Note that it ships with an unfinished hem, though a free in-store hemming service is available, and waist-inseam sizes run 28-36 through 40-36.[7,8,9,10] |
Image Analysis
3 images- 01
Product
Male model wearing straight-leg dark charcoal knit pants with a black belt, paired with a light blue short-sleeve polo and black leather dress shoes. The image shows a full-body frontal three-quarter pose with the model's left hand in the front pocket.
- Pant silhouetteStraight-leg trousers with a narrow but not tapered lower leg, front rise seam visible, natural crease faintly visible along the front of each leg
1 region
x 0.30 · y 0.35 · w 0.40 · h 0.55 (high) - Pant fabric textureFine knit or jersey appearance with a smooth, slightly heathered surface and minimal sheen
1 region
x 0.33 · y 0.45 · w 0.34 · h 0.38 (medium) - Waistband and beltMid-rise waistband with belt loops and a black rectangular-buckled belt threaded through loops
1 region
x 0.38 · y 0.33 · w 0.24 · h 0.10 (high) - PocketsFront slash pockets; model's left hand inserted in right-side front pocket (viewer left), pocket opening visible at hip
1 region
x 0.47 · y 0.36 · w 0.15 · h 0.14 (high) - Hem and fit at anklePant hems fall straight over the shoes with slight break at the front; no visible cuff
1 region
x 0.28 · y 0.80 · w 0.44 · h 0.18 (high) - Visible upper garmentLight blue short-sleeve polo with a three-button placket and a soft knit texture, tucked into the waistband
1 region
x 0.33 · y 0.08 · w 0.34 · h 0.30 (high) - FootwearBlack leather dress shoes with rounded toe and low heel, laced closure, worn with dark socks
1 region
x 0.26 · y 0.88 · w 0.50 · h 0.10 (high)
Other
Studio shot with plain light gray to white gradient background, soft diffuse lighting, and subtle shadow beneath shoes; model posed three-quarter front with slight head tilt.
- Shot compositionFull-body studio portrait centered vertically with the model slightly offset to the right of center, captured from a slightly elevated frontal angle
- BackgroundSmooth light gray to off-white gradient backdrop with no props or visible seams
- Lighting and shadowsEven, diffuse lighting with soft shadow cast under the shoes and slight highlights on the model's face and shoulders
- Model poseModel stands with weight on left leg, right leg slightly forward, left hand in pocket and right arm relaxed at side; head slightly tilted toward viewer left
1 region
x 0.30 · y 0.10 · w 0.40 · h 0.85 (high)
Colors
dark charcoal· pants#2D2D31light blue· polo#85A4C9black· belt#121215black leather· shoes#0D0D0E- Pant silhouetteStraight-leg trousers with a narrow but not tapered lower leg, front rise seam visible, natural crease faintly visible along the front of each leg
- 02
Product
Front view of a pair of straight-leg knit pants in a dark charcoal color showing waistband, front pockets, fly, and full-length legs down to the hem over dress shoes.
- Waistband and belt loopsVisible waistband with multiple belt loops and a single button closure at center front above the fly.
1 region
x 0.28 · y 0.08 · w 0.44 · h 0.12 (high) - Button and flySingle dark round button at the top of a centered fly; fly seam visible beneath the button.
1 region
x 0.43 · y 0.12 · w 0.14 · h 0.18 (high) - Pocket configurationClassic five-pocket styling: two front pockets with a small coin pocket on the right front, pocket openings visible at the hips.
2 regions
x 0.31 · y 0.16 · w 0.20 · h 0.18 (high); x 0.49 · y 0.16 · w 0.20 · h 0.18 (high) - Fabric textureFine knit texture with a subtle bird-eye or micro-pattern visible on the pant surface, giving a slightly heathered look up close.
1 region
x 0.30 · y 0.20 · w 0.40 · h 0.60 (medium) - Leg silhouetteStraight-leg silhouette with a consistent width from thigh to hem, legs falling straight and covering part of the shoe tops.
1 region
x 0.20 · y 0.25 · w 0.60 · h 0.65 (high) - Hem and fit at shoesSimple straight hem that reaches over the front of the shoes, minimal break at the front hem.
1 region
x 0.22 · y 0.78 · w 0.56 · h 0.18 (high)
Other
Studio shot showing a model from mid-torso to feet against a neutral light-gray background with soft even lighting; model hands rest alongside the legs and black dress shoes are visible.
- Model visiblePortion of a model shown from just above the waist to the feet, including both hands positioned beside the thighs.
1 region
x 0.10 · y 0.02 · w 0.80 · h 0.96 (high) - Footwear in shotBlack polished dress shoes worn by the model are visible at the bottom of the frame.
1 region
x 0.15 · y 0.82 · w 0.70 · h 0.16 (high) - Background and lightingEven, soft studio lighting on a seamless light-gray background producing minimal shadows and neutral color rendering.
Colors
dark charcoal· pants fabric#212225- Waistband and belt loopsVisible waistband with multiple belt loops and a single button closure at center front above the fly.
- 03
Product
Rear view of a pair of dark charcoal knit straight-fit pants on a model showing waistband, belt loops, back pockets, and full-length straight legs with slight taper and natural creasing at the knees and hem.
- View and fitRear-on view of pants worn by a model; straight leg silhouette with a slight taper toward the hem and a smooth seat fit.
1 region
x 0.08 · y 0.08 · w 0.84 · h 0.87 (high) - Waistband and belt loopsMid-rise waistband with visible belt loops evenly spaced across the back waist.
1 region
x 0.20 · y 0.06 · w 0.60 · h 0.12 (high) - Back pocketsTwo back pockets: left appears as a slit/welt pocket and right as a patch-style pocket with visible topstitching.
2 regions
x 0.40 · y 0.20 · w 0.24 · h 0.18 (high); x 0.18 · y 0.20 · w 0.22 · h 0.18 (medium) - Seams and stitchingVisible side seams and topstitching around the pockets and waistband; stitching matches fabric color.
1 region
x 0.12 · y 0.18 · w 0.76 · h 0.68 (high) - Fabric textureFine knit texture with a subtle bird's-eye or heathered appearance visible on close inspection of the pant surface.
1 region
x 0.30 · y 0.30 · w 0.40 · h 0.50 (medium) - Hem and lengthFull-length hem rests on top of dress shoes with a small break; hem is plain with no visible cuff.
1 region
x 0.10 · y 0.76 · w 0.80 · h 0.18 (high) - Visible text or logosNo visible brand logos or printed text on the pants surface in this view.
Other
Studio shot showing a model from the rear against a plain light grey background; part of a blue top and black dress shoes are visible. Even soft lighting with mild shadows near feet; no packaging present.
- Background and stagingUniform light grey studio background and floor with the model standing; no props or packaging visible.
- Model and stylingModel is wearing a blue top tucked into the waistband and black dress shoes; model's hands are placed in front pockets creating natural hip posture.
2 regions
x 0.18 · y 0.00 · w 0.64 · h 0.20 (high); x 0.20 · y 0.82 · w 0.60 · h 0.18 (high) - Lighting and shadowsSoft, diffuse lighting with mild shadowing along the inner leg creases and under the shoes.
- Image quality and cropSharp focus on pants with full rear view from waist to shoes; slight cropping at top of model's torso.
Colors
dark charcoal· pants body#2A2A2D- View and fitRear-on view of pants worn by a model; straight leg silhouette with a slight taper toward the hem and a smooth seat fit.
Variants
5 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4089739 | Bird's-Eye Knit Washable Pant Straight Fit - Charcoal - 30 | CA$89.00 | Yes |
| 4089742 | Bird's-Eye Knit Washable Pant Straight Fit - Charcoal - 36 | CA$89.00 | Yes |
| 4089743 | Bird's-Eye Knit Washable Pant Straight Fit - Charcoal - 38 | CA$89.00 | Yes |
| 3884657 | Bird's-Eye Knit Washable Pant Straight Fit - Navy/midnight Blue - 30 | CA$89.00 | Yes |
| 3884661 | Bird's-Eye Knit Washable Pant Straight Fit - Navy/midnight Blue - 38 | CA$89.00 | Yes |
Documents & Data
Customer Reviews
4 total4 reviews · out of 5
Love love these pants!
My husband loves his pants like this! A very nice trim fit. Very comfortable with the stretch but also very sharp and dressy looking! Fits a little on the small side. Ordered the next size up than we usually get and it’s perfect.
Nice pant
The material isn't very thick, I was surprised by that. Definitely seem like they would have run tight. Due to other reviewers, I ordered a size up. It was almost too big for him but they'll do.
Pantalon
Parfait et léger
pants
A bit tighter than other pants but very nice material and length