Updated August 2026 · Sunglasses cleaning and storage guide
Good sunglasses care is mostly about avoiding small scratches, heat damage and unnecessary stress on the frame. The safest routine is simple: remove loose grit before wiping, use clean water and a lens-safe method, dry with a clean microfiber cloth and store the sunglasses in a protective case when you are not wearing them.
This guide applies to everyday and designer sunglasses, including polarised lenses. Always follow the manufacturer’s instructions if the exact model has a special coating or cleaning requirement.
Quick care rule
Do not wipe dusty lenses dry with a shirt, tissue or paper towel. Rinse away loose particles first, then clean gently and use a clean microfiber cloth.
How to Clean Sunglasses Safely
Step 1: Rinse Away Loose Dust, Sand and Salt
If there is visible dust, beach sand or dried salt on the lenses, rinse it away with clean lukewarm water before touching the lens surface with a cloth. Dragging particles across the lens can create fine scratches.
Avoid very hot water. Heat is unnecessary for cleaning and may not be suitable for some frame materials or coatings.
Step 2: Use a Lens-Safe Cleaning Method
For normal fingerprints and light oils, clean water and a microfiber cloth may be enough. If the sunglasses are greasy, a very small amount of mild, lotion-free dish soap can be used on many eyewear lenses, provided the manufacturer does not advise otherwise.
Avoid household window cleaner, bleach, abrasive cleaners and strong solvents. Some lens coatings can be damaged by chemicals that are perfectly safe for ordinary glass.
Step 3: Rinse Thoroughly
Remove all soap residue with clean water. Residue can leave streaks and attract more dust.
Step 4: Dry With a Clean Microfiber Cloth
Use a soft microfiber cloth intended for eyewear. The cloth itself also needs to be clean—oil, grit or fabric softener residue can reduce cleaning performance.
Do not use paper towels, facial tissues or rough clothing as your normal cleaning method.
How to Clean Polarised Sunglasses
Polarised lenses do not require a special “centre-outward” wiping technique. Clean them using the same gentle process: rinse away debris, use a lens-safe cleaner or mild soap where appropriate, rinse and dry with microfiber.
The important issue is protecting any coatings on the exact lens. Follow brand-specific care instructions if supplied.
What About Sunscreen, Sweat and Salt Water?
Sunscreen, skin oils, sweat and salt can build up around lenses, nose pads, hinges and temples. After beach or sport use, rinse the sunglasses with fresh water and dry them properly rather than allowing salt residue to remain on the frame.
Take extra care around metal hardware and decorative details. Do not soak sunglasses for long periods unless the manufacturer specifically permits it.
Best Way to Store Sunglasses
A protective case is the best default storage method because it protects both the lenses and frame from keys, bags, pressure and accidental drops.
Use a Hard or Structured Case for Bags and Travel
A soft pouch protects against light dust and rubbing but provides less crush protection. If sunglasses will be in a handbag, backpack, suitcase or car console with other objects, a structured case is safer.
Do Not Put Sunglasses Lens-Down
Placing sunglasses directly on their lenses increases the chance of scratching. When a case is not available, fold the temples and place the frame so the lenses do not contact a hard surface.
Avoid the Dashboard and Hot Car
Cars can become extremely hot in direct sun. Prolonged high heat can be hard on frame materials, adhesives and coatings. Store sunglasses away from the dashboard and other high-temperature areas.
Keep Them Dry Before Closing the Case
If sunglasses are wet from rain, swimming or cleaning, dry them before sealing them into a case for long periods.
How to Put Sunglasses On and Take Them Off
Using two hands where practical reduces repeated twisting of the frame. Pulling one temple outward every time can gradually place uneven stress on hinges and alignment.
This is especially helpful with larger acetate frames, thin metal frames and sunglasses with delicate hardware.
What to Do About Loose Screws or Crooked Frames
Check the frame occasionally for loose hinge screws, nose-pad movement or obvious misalignment. Do not keep tightening screws aggressively at home; overtightening can damage threads or hinges.
If a frame feels crooked, has a loose component or needs heat adjustment, professional eyewear assistance is safer than forcing the frame by hand.
How to Protect Sunglasses While Travelling
- Use a structured case inside luggage.
- Do not place heavy objects on top of the case.
- Keep a clean microfiber cloth with the sunglasses.
- Rinse salt and sand after beach use.
- Avoid leaving the frame in a hot rental car or on a sunny dashboard.
- Keep the model or product details available if you need replacement parts or service.
Can Scratched Sunglasses Lenses Be Polished?
DIY polishing methods are risky because they can change optical quality or remove coatings. Toothpaste, baking soda and abrasive polishing compounds should not be used on sunglass lenses.
If a scratch affects vision or bothers you significantly, ask the brand, retailer or an eyewear professional whether replacement lenses or service are available for the exact model.
How Often Should You Clean Sunglasses?
Clean them when you notice fingerprints, dust, sunscreen or salt rather than following a fixed schedule. Frequent gentle cleaning is better than allowing abrasive debris to build up and then scrubbing aggressively.
If you wear sunglasses daily, keeping a clean microfiber cloth and protective case with you makes routine care much easier.
Protect the Lens Specification as Well as the Frame
Care helps preserve a pair after purchase, but it cannot turn an unsuitable lens into a protective one. Before buying, confirm the UV claim, lens category and any driving or polarisation information for the exact model.
Read our UV Protection Sunglasses NZ guide for those buying checks.
Sunglasses Care FAQ
What is the safest way to clean sunglasses?
Rinse away loose dust or grit with clean lukewarm water, use a lens-safe cleaning method, rinse thoroughly and dry with a clean microfiber cloth.
Can I use dish soap on sunglasses?
A very small amount of mild, lotion-free dish soap is suitable for many sunglasses, provided the manufacturer does not advise against it. Avoid harsh cleaners and strong solvents.
Can I clean sunglasses with window cleaner?
It is safer not to. Household glass cleaners can contain chemicals that may damage lens coatings. Use a cleaner intended for eyewear or follow the manufacturer’s care instructions.
Can I wipe sunglasses with my shirt?
It is better to use a clean microfiber cloth. Clothing can contain dust or fibres that drag across the lens and create fine scratches over time.
How should I store sunglasses?
Use a protective case when the sunglasses are not being worn. A structured case is especially useful in bags, luggage and cars because it provides better crush protection.
Can a hot car damage sunglasses?
Prolonged high heat can affect some frame materials, coatings, adhesives and fit. Avoid leaving sunglasses on a dashboard or in other high-temperature areas.
How do I remove beach salt from sunglasses?
Rinse the sunglasses with fresh clean water to remove salt and sand, then dry them with a clean microfiber cloth. Avoid rubbing dry salt crystals across the lenses.
Can scratched sunglasses be repaired at home?
Avoid abrasive DIY polishing methods. They can damage coatings or optical quality. Ask about professional service or replacement lenses for the exact model.
Explore and Care for Designer Sunglasses
Browse Luxury Sunglasses NZ, then use our Sunglasses Fit & Face Shape Guide when choosing your next frame.
Gadgets Online NZ has served New Zealand customers since 2008. Shop online or visit our Mount Eden, Auckland store for authentic designer eyewear and local assistance.
