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Maintenance Guide

How to Clean and Care for Sunglasses

The right way to clean lenses without scratching coatings, plus storage habits that actually extend lens life.

Written by William • Updated July 2026 • 4 min read

The right way to clean lenses without scratching coatings, plus storage habits that actually extend lens life.

  1. 1

    Rinse before wiping, every time

    Wiping a dry lens spreads trapped dust and grit across the surface, causing fine scratches over time. Rinse lenses with water first to remove loose particles before any wiping, especially after dusty trail conditions.

  2. 2

    Use a microfiber cloth, never a shirt or paper towel

    Cotton clothing and paper products can carry abrasive fibers or leave lint, and both can scratch coated lenses over repeated use. A dedicated microfiber cloth, kept in the included case, is worth using consistently rather than reaching for whatever's on hand.

  3. 3

    Avoid household glass cleaners

    Many glass cleaners contain ammonia or alcohol that can degrade anti-reflective, polarized, or mirror coatings over time. A mild dish soap diluted in water, or a lens-specific cleaning spray, is a safer choice for coated sunglass lenses.

    Quick method: Rinse with water, apply a drop of diluted mild soap, gently rub with fingers (not a cloth) to lift oils, rinse again, then dry with a clean microfiber cloth.
  4. 4

    Store in a hard case when not worn

    Tossing sunglasses loose into a pack or pocket is one of the most common causes of scratched lenses and bent frames. A hard case, even a simple one, prevents most everyday damage during transport.

  5. 5

    Don't leave sunglasses in a hot car

    Extreme heat can warp certain frame materials and degrade some lens coatings and photochromic reactivity over time. A hot dashboard or closed car in summer is a common, avoidable cause of premature wear.

Sunglasses With Included Cases and Warranties

ProductBest ForLens/TechPriceScore
Ombraz Armless Classics3mm neoprene case, lifetime warrantyZeiss Polarized$1609.5/10
Suncloud MilestoneMicrofiber bag, lifetime warrantyPolarized$608.7/10
Maui Jim Banyans2-year warrantyPolarizedPlus2$2399.0/10

Frequently Asked Questions

Can I use my shirt to clean my sunglasses?
It's better not to — cotton and other fabrics can carry abrasive particles or leave lint that scratches coated lenses over repeated use. A dedicated microfiber cloth is a safer, low-cost habit.
Are glass cleaners safe for sunglass lenses?
Not always — many contain ammonia or alcohol that can degrade anti-reflective, polarized, or mirror coatings over time. Diluted mild soap or a lens-specific cleaner is a safer choice.
Does leaving sunglasses in a hot car actually damage them?
Yes — extreme heat can warp some frame materials and degrade lens coatings or photochromic performance over time, so it's worth avoiding when possible.