Quick answer
Treat acetate sunglasses like a polished plastic: rinse off grit, clean with lukewarm water and a drop of mild soap, dry with a clean microfiber cloth, and store them in a hard case. Skip hot water, paper towels, and loose bag storage, which are the fastest ways to dull the finish or scratch the lenses.
Why acetate needs a gentler routine than metal frames
Acetate is a plant-based plastic that can soften with heat and lose its gloss when cleaned with the wrong products. That makes temperature and cloth choice more important than scrubbing effort.
The Opio frame pairs acetate with PolarizedPlus2 SuperThin Glass lenses. Glass resists scratches better than many plastic lenses, but it can still be damaged by grit trapped in a cloth or by cleaners that leave residue on the polarized coating.
The habits that cause most damage
Most worn-looking acetate frames are not the result of one big accident. They come from repeated small choices: wiping lenses on a shirttail, leaving sunglasses on a car dashboard, or tossing them into a bag without a case.
Heat is the quiet culprit for acetate. A hot car or a hair dryer can warp the frame shape, and once the frame is misshapen, the lenses no longer sit correctly.
Step-by-step Opio sunglasses care routine
- Rinse before you wipe: Hold the frame under a gentle stream of lukewarm water to float away dust and salt. Common mistake: wiping a dry lens first, which grinds grit into the coating. If you can feel particles on the lens, rinse again before using any cloth.
- Wash with mild soap only: Add one drop of unscented hand soap or dish soap to your fingertips, clean the acetate temples and front, then rinse thoroughly. Avoid alcohol, ammonia, and household glass cleaners, which can cloud acetate and strip lens coatings.
- Dry with a clean microfiber cloth: Pat and wipe gently with a microfiber cloth reserved for eyewear. Checkpoint: paper towels, tissues, and clothing fibers can leave fine scratches even when they feel soft. Wash the microfiber cloth regularly; a dirty cloth spreads oil and grit back onto the lenses.
- Store in a hard case, not a bag: Place the sunglasses in a hard case with the lenses facing up and the arms folded. Common mistake: dropping them loose into a purse or backpack, where keys and coins can scratch the glass.
- Keep heat away from the frame: Store the case out of direct sun and never leave sunglasses on a dashboard or near a heater. Acetate can soften and warp with heat, which changes how the frame fits. If the frame feels warm to the touch, let it cool before folding the arms.
- Handle by the temples, not the lenses: Put on and remove Opio sunglasses using both hands on the temples. Checkpoint: grabbing the lenses leaves fingerprints and gradually loosens the frame hinges.

