Which lens for which conditions
Every FeelMorys frame uses a polycarbonate lens, chosen for its weight and for how it behaves when something hits it. What changes between models is the treatment on top of it, and that treatment is most of the price difference across the range.
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What it does | Suits | Models and from-price |
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Standard โ Polycarbonate
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A fixed tint with UV protection absorbed into the polycarbonate. Polycarbonate is the base material under every lens here: roughly half the weight of glass at the same thickness, and it flexes and deforms when something hits it rather than breaking into sharp fragments. The lens every other one in the range is built on. | Most daylight conditions, and the lowest price in the range. Tint varies widely by colourway, so check the category on the product page. | SOA, DARA, BADA from SGD 77 |
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Polarized
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Filters light reflected off flat surfaces. The result is a cleaner image rather than a darker one. | Wet road, coastal routes, and tracking something small at speed. | DARA, NOA, LUA, LUBARA, ARA from SGD 105 |
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Photochromic
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Tint changes as UV levels change. One lens covers a session from before dawn to full sun. | Runs and rides that cross changing light. Not driving, because windscreens block the UV it reacts to. | DARA, NOA from SGD 155 |
On the standard and polarized lenses, UV protection is absorbed by the polycarbonate itself rather than applied as a surface coating, so it does not wear off.
Same frame, three lenses
The DARA frame takes all three lens types. Same 27g shape, same adjustable nose pads, same silicone contact points. What changes is the lens, and most of the price difference with it.
Where to read further
Polarized
Light bouncing off wet tarmac or open water comes back horizontally polarized, and that is what flattens contrast and makes you squint. A vertical filter laminated inside the lens blocks it. It is also the lens that can dim an LCD screen at certain angles, which is worth knowing before you buy.
How polarized lenses workPhotochromic
The tint darkens in about 30 seconds and clears more slowly, over several minutes. The range is category 0 to 4, which covers a dark start through to full daylight on one lens. It does not work behind a windscreen.
How photochromic lenses workFogging and airflow
Fog is warm damp air from your face meeting a cooler lens with nowhere to go. SOA vents at the outer edges and along the temples. DARA vents at the upper corner and lets you raise the frame off the face. Airflow reduces fogging rather than preventing it.
Why sunglasses fog, and what reduces itWearing them with a prescription
DARA, NOA and BADA accept an optical insert that mounts behind the main lens. You buy the frame and your optician glazes the insert to your prescription. SOA, LUA, LUBARA and ARA do not take one.
Wearing FeelMorys with a prescriptionCommon questions
Which lens should I choose for running?
Standard for most conditions and the lowest price. Polarized if you run on wet road or near water. Photochromic if your runs cross changing light, because one lens covers the whole session.
What is the difference between polarized and photochromic?
Polarized manages glare by filtering light reflected off flat surfaces. Photochromic manages brightness by changing tint as UV levels change. They solve different problems and neither replaces the other.
Why polycarbonate rather than glass?
Weight and behaviour under impact. At the same thickness polycarbonate is around half the weight of glass, which you notice over a long run. It also flexes and deforms when something hits it instead of breaking into sharp fragments, which is why it is the usual material for sports lenses. Individual models are not certified to EN 166 or ANSI Z87.1, so these are sports eyewear rather than rated safety glasses.
What does lens category mean?
A scale from 0 to 4 measuring how much visible light the lens transmits, set by EN ISO 12312-1 and AS/NZS 1067. Category 3 is a standard dark sunglass lens. Category 0 is close to clear. Category 4 is the darkest and is not permitted for driving. Category is a measure of tint, not of UV protection.
Is UV protection the same as how dark the lens is?
No. A light lens can block just as much UV as a dark one. On the standard and polarized lenses, the UV protection is absorbed by the polycarbonate itself rather than applied as a coating, so it does not wear off.
