Greyson Small Rectangular Sunglasses

Le 31's Greyson Small Rectangular Sunglasses offer genuine polarization verified by an LCD test, blocking horizontal glare from wet roads and water while enhancing color saturation for deeper blues and richer greens, all in a nickel-free plastic frame under 30 grams for lightweight, hypoallergenic comfort at 29 CAD, with a tradeoff of undisclosed lens material (comparable models use glass) and specific care requirements to avoid alcohol-based cleaners.

Polarization

An LCD screen rotation test confirms genuine polarization in 10 seconds.

Why this is supported

The Greyson sunglasses can be quickly verified as genuinely polarized using a simple LCD screen test:

Hold the sunglasses in front of an LCD screen (smartphone, car dashboard) and rotate them 90 degrees: genuine polarized lenses will turn nearly black at one angle because the screen emits polarized light blocked by the lens filter, a 10-second at-home verification before the first wear.How polarized lenses improve vision — lcd_screen_polarization_test

This test is particularly valuable given the 29 CAD price point, as it is

especially noteworthy in a 29 CAD frameHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

After confirming polarization, real-world performance can be further observed:

glare from wet roads and water surfaces is horizontally polarized, the Greyson's lenses suppress the washed-out reflections that cause squinting and eye strain during drivingHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

Additionally,

By eliminating the veil of scattered reflected light, polarization allows the retina to see truer, more saturated colors — in bright outdoor scenes, this means blue skies look deeper and green foliage richer compared to non-polarized lenses of the same tint.How polarized lenses improve vision — color_perception_through_glare_reduction

Glare reduction

Polarized lenses block horizontal glare from wet roads and water surfaces.

Why this is supported

The lenses use polarization to filter light. According to research, the Greyson

blocks horizontally oriented light waves — the orientation of glare bouncing off roads, water, and snowHow polarized lenses improve vision — horizontal_wave_filter

. This helps

suppress the washed-out reflections that cause squinting and eye strain during drivingHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

. On water, they

slice through surface glare to reveal what's beneathHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

. Additionally,

. A simple verification is possible:

Hold the sunglasses in front of an LCD screen (smartphone, car dashboard) and rotate them 90 degrees: genuine polarized lenses will turn nearly black at one angleHow polarized lenses improve vision — lcd_screen_polarization_test

. This functionality is

a functional advantage at any price but especially noteworthy in a 29 CAD frameHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

.

Color perception

Colors appear truer and more saturated — deeper blues, richer greens — than with non-polarized lenses of the same tint.

Why this is supported

By eliminating the veil of scattered reflected light, polarization allows the retina to see truer, more saturated colors — in bright outdoor scenes, this means blue skies look deeper and green foliage richer compared to non-polarized lenses of the same tint.How polarized lenses improve vision — color_perception_through_glare_reduction

Polarized lenses contain a laminated film that blocks horizontally oriented light waves — the orientation of glare bouncing off roads, water, and snow — while transmitting vertically oriented light, which cuts blinding reflected light in a way that tinted non-polarized lenses cannot.How polarized lenses improve vision — horizontal_wave_filter

a functional advantage at any price but especially noteworthy in a 29 CAD frameHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

Weight

Weighs under 30 g, half the weight of metal frames.

Why this is supported

The frame is confirmed to weigh under 30 grams, roughly half the weight of typical metal or acetate frames at this price point, reducing nose and temple pressure.

At the 29 CAD tier, plastic sunglasses frames typically weigh under 30 grams — about half the heft of metal or acetate equivalents — which directly translates to less nose pad and temple fatigue for extended outdoor wear.Plastic frame materials and all-day comfort — light_weight_all_day_comfort

Nickel-free

Nickel-free frame avoids allergic reactions with prolonged wear.

Why this is supported

The plastic frame material is inherently nickel-free, which avoids allergic reactions and skin irritation during prolonged use, especially in hot weather.

Unlike metal frames that often contain nickel, plastic frame materials are inherently non-allergenic and non-conductive, making them a better choice for prolonged skin contact in the heat.Plastic frame materials and all-day comfort — skin_safe_material

Polarized value

Polarized lenses with 100% UV at 29 CAD, verifiable via LCD test.

Why this is supported

True polarization at this price point is a standout feature.

a functional advantage at any price but especially noteworthy in a 29 CAD frameHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

The lenses contain a laminated film that blocks horizontally oriented light, the same technology used in premium eyewear.

Polarized lenses contain a laminated film that blocks horizontally oriented light waves — the orientation of glare bouncing off roads, water, and snow — while transmitting vertically oriented lightHow polarized lenses improve vision — horizontal_wave_filter

Moreover, the polarization can be quickly confirmed at home.

Hold the sunglasses in front of an LCD screen (smartphone, car dashboard) and rotate them 90 degrees: genuine polarized lenses will turn nearly black at one angleHow polarized lenses improve vision — lcd_screen_polarization_test

This simple test validates the filter's presence, assuring the buyer of an authentic product.

Vision performance

Blocks road and water glare and enhances color saturation.

Why this is supported

The polarized filter's impact on driving and boating is significant.

on water they slice through surface glare to reveal what's beneathHow polarized lenses improve vision — on_road_and_on_water_glare_reduction

On roads, it reduces squinting by eliminating reflected glare.

By eliminating the veil of scattered reflected light, polarization allows the retina to see truer, more saturated colors — in bright outdoor scenes, this means blue skies look deeper and green foliage richerHow polarized lenses improve vision — color_perception_through_glare_reduction

Comfort

Plastic frame under 30 grams, non-allergenic for extended wear.

Why this is supported

The plastic frame weighs roughly half of alternative materials.

plastic sunglasses frames typically weigh under 30 grams — about half the heft of metal or acetate equivalents — which directly translates to less nose pad and temple fatigue for extended outdoor wearPlastic frame materials and all-day comfort — light_weight_all_day_comfort

Additionally, the material is skin-friendly in warm conditions.

plastic frame materials are inherently non-allergenic and non-conductive, making them a better choice for prolonged skin contact in the heatPlastic frame materials and all-day comfort — skin_safe_material

Research confirms that

plastic frame materials are inherently non-allergenic and non-conductivePlastic frame materials and all-day comfort — skin_safe_material

. This ensures the plastic frame is comfortable for all skin types.

Sizing

Lens, bridge, temple measurements printed inside temple arm

Why this is supported

To find the exact fit dimensions,

These measurements are typically printed on the inside of the temple arm of the sunglasses — once you receive them, you can check for a series of three numbers (lens width, bridge width, temple length).What are the exact lens width, bridge width, and temple length?

Fit maintenance

Cleaning temples with damp cloth and mild soap helps maintain the original fit

Why this is supported

The recommended care routine supports fit longevity:

To prevent frame deformation and maintain the secure fit that underpins comfort, clean the Greyson's plastic temples with a damp cloth and mild soap — avoid alcohol-based sprays and wipes, as they can degrade the frame's polymer.Plastic frame materials and all-day comfort — care_for_longevity

. Following this advice preserves the original dimensions.

Care

Clean with a damp cloth and mild soap; avoid alcohol to prevent warp.

Why this is supported

The research confirms the recommended cleaning method:

To prevent frame deformation and maintain the secure fit that underpins comfort, clean the Greyson's plastic temples with a damp cloth and mild soapPlastic frame materials and all-day comfort — care_for_longevity

. It also notes that plastic is non-allergenic, so aggressive cleaning is less necessary:

plastic frame materials are inherently non-allergenic and non-conductive, making them a better choice for prolonged skin contact in the heatPlastic frame materials and all-day comfort — skin_safe_material

. However, alcohol-based products must be avoided:

avoid alcohol-based sprays and wipes, as they can degrade the frame's polymerPlastic frame materials and all-day comfort — care_for_longevity

. This is especially important because the lightweight frame, typically under 30g, is more susceptible to deformation:

plastic sunglasses frames typically weigh under 30 grams — about half the heft of metal or acetate equivalents — which directly translates to less nose pad and temple fatigue for extended outdoor wearPlastic frame materials and all-day comfort — light_weight_all_day_comfort

Lens material

Lens material undisclosed; comparable Le 31 models use glass.

Why this is supported

The lens material is not disclosed. The Q&A notes:

similar Le 31 models like the Slim Rectangular use glass lenses, but we cannot confirm for this specific model.What material are the lenses made of (e.g., glass, polycarbonate, CR-39)?

At the 29 CAD tier, plastic frames

typically weigh under 30 grams — about half the heft of metal or acetate equivalentsPlastic frame materials and all-day comfort — light_weight_all_day_comfort

. If glass lenses are used, the combined weight could exceed the norm for lightweight sunglasses.