Most sunglasses do not die from a dramatic accident. They die from a slow accumulation of small scratches and one hot afternoon on a dashboard. Both are avoidable.
The cleaning mistake almost everyone makes
Wiping a dry lens with your shirt is the single most common way lenses get ruined. Dust here is fine and abrasive, and the moment you wipe a dry lens you are dragging grit across it under pressure. The result is a haze of fine circular scratches that no amount of later care will remove.
The fix is simple: rinse first, always.
- Rinse both sides under cool running water to float the dust off.
- Add one drop of plain dish soap and work it gently with your fingertips.
- Rinse again.
- Dry with a microfibre cloth, not tissue, paper towel or a shirt.
If you have no water, do not clean them. A smudged lens is temporary; a scratched one is permanent.
Heat is the real enemy
A car parked in the sun in Cairo can reach well above 60°C inside, and the dashboard is hotter still. Acetate frames soften and warp at those temperatures, and lens coatings can craze. A pair left on the dash a few times will slowly stop sitting straight on your face, and the cause is rarely obvious.
Keep them in the glovebox or take them with you. Never the dashboard, never the rear shelf.
Sunscreen, sweat and salt
Sunscreen is harder on frames than most people expect — several common formulations degrade plastics and attack coatings over time. If you apply sunscreen to your face, wash your hands before touching your frames, and rinse the frames at the end of a beach day.
The same goes for sweat and sea water. Salt left to dry works into the hinges and corrodes the screws, especially on metal frames like the slim Canazei and Selva lines. A freshwater rinse takes ten seconds and prevents it.
Two hands, always
Taking sunglasses off one-handed pulls the frame out of alignment a fraction each time. After a few months one arm sits wider than the other and the frame no longer sits level. Use both hands on both arms. It feels fussy for about a week, then it is automatic.
Set them down folded and facing up, never resting on the lenses.
Storage
The hard case is not packaging — it is the reason a pair lasts years instead of months. Loose in a bag, a frame gets sandwiched against keys and phone edges, and that is where deep scratches come from.
The cloth that comes in the case is for drying and light buffing only, and it needs washing occasionally. A microfibre cloth that has collected dust is just as abrasive as a shirt.
On the head, and why not to
Pushing sunglasses up onto your head stretches the arms outward over time and transfers hair oil onto the lenses and nose pads. It is the most comfortable habit to keep and the most expensive one. If nothing else on this list sticks, at least do it with both hands.
What is actually worth replacing
Loose screws and worn nose pads are cheap fixes and worth doing. A scratched lens is not repairable — polishing compounds remove the coating along with the scratch and make the optics worse. Once the lens is gone, it is time for a new pair.
If you have reached that point, the full GRIPZ range is here, and the mix and match bundle is a reasonable way to keep a spare so no single pair takes all the wear.