Le 31
Matte Black Square Sunglasses
These sunglasses feature a matte black full-rim plastic frame with square-shaped polarized lenses that provide 100% UV protection. The lenses have a purple-to-gray gradient tint to reduce glare and improve color perception. They are lightweight with an integrated bridge and are suitable for everyday outdoor use.
- Color
- Matte Black
- Material
- Plastic frames
- Gender
- unisex
- Style
- modern, minimalist
- Category
- Apparel & Accessories > Clothing Accessories > Sunglasses
Color
Size
Specifications
Modern matte black square sunglasses with polarized lenses and UV protection
Polarized lenses reduce glare, 100% UV protection, lightweight plastic frames
- Color
- Matte Black · black
- Material
- Plastic frames
- Style
- modern, minimalist
- Occasion
- everyday, vacation, travel
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing Accessories > Sunglasses
Additional Attributes
- 100% UV protection
- polarized lenses for glare-free vision and optimal colour perception
- lightweight modern plastic frames
- matte black finish
- square shape
Product Insights
Le 31's matte black square sunglasses eliminate blinding glare on roads and water, though polarization and UV claims aren't independently certified; the square frames with straight lines and generous coverage add structure to round faces and flatter oval faces, suiting both blazers and t-shirts, but plastic frames break easily—two-handed removal and a hard case are recommended, and weekly mild-soap cleaning doubles frame lifespan, while lightweight plastic and standard hinges lack spring flex, and LCD screens may darken at certain angles.
- Glare reduction
Eliminates blinding glare on roads and water.
Why this is supported
Polarized lenses selectively block horizontally polarized light, which is the primary component of glare reflected from asphalt and water surfaces.
Polarized sunglasses block much of the light reflected by the road, resulting in a darker appearance of the road and reducing the glare
frontiersin.orgThe same principle applies near water, where glare is even more pronounced.
Reflected glare is especially bothersome near water, which is highly reflective, and around asphalt and metals.
sunglassscience.comCrucially, transmission testing shows polarized and non-polarized lenses have almost identical total light transmission, so polarization's benefit is purely glare removal, not dimming.
The pairs of polarized and non-polarized sports sunglasses showed similar transmission factors, so their ability to mitigate outdoor light is almost the same—the main difference lies in the polarized light transmitted.
frontiersin.org- Screen readability
Can darken LCD screens when viewed at certain angles.
Why this is supported
A known side effect of polarized lenses is that they can block light from LCD screens when the lens orientation is 90 degrees from the screen's polarization.
However, if the polarization filter in your sunglasses is oriented at a different angle (typically 90 degrees) to the polarization of the light from the screen, the polarized light from the screen is blocked by the lenses. This can make the screen appear dark or completely black.
sunglassscience.comThis is a recognized limitation cited by manufacturers and opticians:
Polarized lenses may reduce your visibility on LCD screens like ATMs, tablets, or phones.
bikehike.org- Certification
Polarization and UV claims are not independently certified.
Why this is supported
The product's UV protection and polarization claims are not backed by independent certification.
The product states '100% UV protection' and 'polarized lenses' but does not mention independent testing or certification to standards like ANSI Z80.3.
Are the polarization and UV protection independently tested or certified to any standard (e.g., ANSI)?While such claims are common in this price band and generally reliable, they have not been verified by a third party.
- Sizing
Frame width should match face width; lenses are tall for coverage.
Why this is supported
Warbyparker.com notes that
the geometry of many square sunglasses allows for relatively generous lens height and width
warbyparker.com, increasing coverage. Aoolia.com advises that
the frame should be about as wide as the widest part of your face, and no wider
aoolia.comto avoid a borrowed look.
- Comfort
Lightweight plastic; standard hinges lack spring flex.
Why this is supported
The plastic frame's light weight keeps them comfortable for all-day wear. Regarding hinges,
The product details do not mention spring hinges. Given the budget price point and plastic frames, these likely have standard hinges rather than spring hinges.
Do the frames have spring hinges or standard hinges?This means they have less outward flex, so the fit is snugger on wider faces.
- Style
Square frames have a confident architectural look for any outfit.
Why this is supported
Warbyparker.com describes the aesthetic:
straight lines and right angles create a confident, architectural look that works as easily with a tailored blazer as it does with a simple T-shirt
warbyparker.com- Design aesthetic
The square frame's straight lines, right angles, and generous coverage create a confident, substantial look suitable for both blazers and t-shirts.
Why this is supported
The square frame's proportions, with
lenses that are close to equal in width and height, with defined corners and a strong horizontal line across the brow
aoolia.com, give it a confident, architectural feel. Additionally, the generous lens coverage
increases the portion of your face that is covered by the lenses
warbyparker.com, and this shape
works as easily with a tailored blazer as it does with a simple T-shirt.
warbyparker.com- Face shape
Square frames add structure to round faces and flatter oval faces at any size.
Why this is supported
For round faces,
The straight lines and corners add structure and definition that soft, curved features don't have on their own, so the contrast does flattering work.
aoolia.comFor oval faces,
The proportions are already balanced, so square reads well at almost any size, including the larger statement frames.
aoolia.com- Brand positioning
Le 31 is a Simons house brand designed in Canada, emphasizing sophisticated style over sport-specific functionality.
Why this is supported
Le 31 is
an exclusive designed in Canada
stylight.ca, and its aesthetic
speaks to a sophisticated aesthetic
lyst.comrather than sport functionality.
- Cleaning
Weekly mild-soap cleaning doubles plastic frame lifespan.
Why this is supported
The American Academy of Ophthalmology recommends a simple cleaning routine to prevent accumulation of oils and dirt that can cloud and embrittle plastic frames. The routine:
then fill a clean bowl with water and add a drop or two of mild dishwashing liquid. Dunk the sunglasses several times to remove debris, and gently massage the lenses between your fingers with soapy water until the smudges are gone.
wytheeyeassociates.comThis routine, done weekly, effectively doubles the usable life of a $29 plastic frame. Additionally, the brand positions the sunglasses as a fashion piece, with Lyst noting it
speaks to a sophisticated aesthetic
lyst.com, and regular cleaning preserves the matte black finish that gives it that appeal.
- Durability
Plastic frames break easily; two-handed removal and hard case prevent damage.
Why this is supported
The American Academy of Ophthalmology confirms that plastic frames are more brittle than metal frames. The organization states:
A disadvantage of plastic frames is that they break more easily than metal frames.
aao.orgAdditionally, this pair likely uses standard hinges, which are more prone to loosening or snapping if over-stretched or twisted. A product Q&A notes they
these likely have standard hinges rather than spring hinges.
Do the frames have spring hinges or standard hinges?Therefore, using two hands to remove the sunglasses and storing them in a hard case can prevent the most common failure points.
Image Analysis
2 images- 01
Product
Front-facing matte black full-rim plastic sunglasses with square(ish) lenses and a subtle center bridge; lenses show a dark-to-light purple gradient. Temples are visible behind the lenses and frame casts a soft shadow on the surface below.
- Frame shapeFull-rim rectangular/square frame with slightly rounded lower corners and a straight upper brow line; frame appears to be one continuous front piece with integrated bridge.
1 region
x 0.05 · y 0.28 · w 0.90 · h 0.40 (high) - Frame material and finishMatte black plastic finish on the front face and visible temple tips, with a uniform non-reflective surface.
1 region
x 0.05 · y 0.28 · w 0.90 · h 0.40 (high) - Bridge detailNarrow, slightly curved bridge with a subtle inward notch at the top center of the frame.
1 region
x 0.45 · y 0.33 · w 0.10 · h 0.08 (high) - Lens gradientLenses show a dark purple tint at the top that transitions to a much lighter grayish tone toward the bottom (visible gradient top-to-bottom).
2 regions
x 0.12 · y 0.36 · w 0.33 · h 0.30 (high); x 0.55 · y 0.36 · w 0.33 · h 0.30 (high) - Temples visibleInterior portions of both temples are visible behind the lenses, angled back toward the image edges; temples share the same matte black finish as the frame front.
2 regions
x 0.08 · y 0.30 · w 0.18 · h 0.34 (medium); x 0.74 · y 0.30 · w 0.18 · h 0.34 (medium) - Lens shape and rim relationLenses are inset within the frame with a visible narrow inner rim separating lens edge from outer frame, creating a slight recessed appearance.
2 regions
x 0.12 · y 0.36 · w 0.33 · h 0.30 (high); x 0.55 · y 0.36 · w 0.33 · h 0.30 (high)
Other
Centered product shot on a uniform light gray background with even frontal lighting and a soft shadow beneath the sunglasses; image is cropped with space above the frame.
- Background and stagingPlain light gray background with no props or visible branding; product centered horizontally and placed slightly below vertical center.
- ShadowSoft shadow under and slightly forward of the frame consistent with frontal overhead lighting; shadow is diffuse and light gray.
1 region
x 0.20 · y 0.60 · w 0.60 · h 0.12 (medium) - Lighting and reflectionsEven, diffuse frontal lighting with minimal specular reflections on the matte frame and a subtle reflective highlight along the top edge of the lenses.
1 region
x 0.30 · y 0.28 · w 0.40 · h 0.08 (medium) - Image crop and orientationHorizontal portrait-oriented image showing entire front of sunglasses; small top margin of background visible above the frame and slightly larger area below.
Colors
matte black· frame#2C2C2Cpurple gradient· lenses- Frame shapeFull-rim rectangular/square frame with slightly rounded lower corners and a straight upper brow line; frame appears to be one continuous front piece with integrated bridge.
- 02
Product
Matte black square-frame sunglasses shown at a three-quarter angled top view, with matte black temples and gradient purple-gray lenses visible.
- Frame shapeSquare full-rim frame with slightly rounded inner lens corners and a flat upper rim line across both lenses.
1 region
x 0.05 · y 0.46 · w 0.72 · h 0.34 (high) - Frame finishMatte black finish on the front frame and temples with a uniform non-reflective surface.
1 region
x 0.05 · y 0.46 · w 0.86 · h 0.36 (high) - Lens appearanceLenses show a top-to-bottom gradient tint transitioning from darker purple at the top to lighter gray near the bottom.
2 regions
x 0.09 · y 0.52 · w 0.27 · h 0.27 (high); x 0.32 · y 0.52 · w 0.27 · h 0.27 (high) - Temple designStraight matte black temples that widen slightly toward the ear tips; left temple is visible folded back while right temple extends outwards.
1 region
x 0.34 · y 0.46 · w 0.56 · h 0.25 (high) - Nose bridgeIntegrated molded bridge in the same matte black material as the frame, with a shallow curved cut between lenses.
1 region
x 0.21 · y 0.58 · w 0.12 · h 0.08 (medium) - Inner temple print“White printed text on the inner left temple reading '100% UV Protection' followed by 'CE'.”
1 region
x 0.17 · y 0.37 · w 0.22 · h 0.07 (high) - Temple tip marking“Small white marking near the right temple tip; characters appear to read 'China' with an adjacent small circular symbol but are small and slightly blurred.”Partial
1 region
x 0.59 · y 0.40 · w 0.09 · h 0.07 (medium)
Other
Studio product shot on a light neutral gray background with soft shadow beneath the sunglasses; three-quarter top perspective with even diffuse lighting.
- Background and shadowSmooth light gray background with a soft diffuse shadow cast beneath and to the right of the glasses, indicating top-left lighting.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Shot compositionSunglasses centered in the lower half of the frame photographed at a slight downward angle showing front and upper temple surfaces.
- Image qualityHigh resolution with clear edges and minimal noise; small specular highlight on the inner edge of the left lens.
1 region
x 0.07 · y 0.50 · w 0.18 · h 0.18 (medium)
Colors
matte black· frame and temples#333435purple to gray gradient· lenses#7D7B82white· inner temple text#C4C4C4- Frame shapeSquare full-rim frame with slightly rounded inner lens corners and a flat upper rim line across both lenses.
Documents & Data
Customer Reviews
1 total1 reviews · out of 5
Très confortables, au-delà de mes attentes.
Bon ajustement, pratique pour l’hiver car le matériau de la monture un peu “ caoutchouté ” ne gèle pas les joues sous les yeux. . Très bonne clarté même si elles sont foncées. C’est un bon achat.