What UV400 Protection Means in Sunglasses
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UV400 Explained
UV400 describes lenses designed to block ultraviolet radiation with wavelengths up to 400 nanometres. This range includes UVA and UVB radiation. When shopping for sunglasses, look for UV400 or 100 percent UV protection in the product information rather than judging protection by the appearance of the lens.
Dark Lenses Are Not the Same as UV Protection
A darker tint can reduce visible brightness, but tint alone does not confirm ultraviolet protection. A light grey, brown, or coloured lens may provide UV400 protection if it is made and tested for that purpose. The label and product specifications are more useful than colour when checking protection.
Polarization Has a Different Purpose
Polarized lenses are designed to reduce reflected glare from surfaces such as roads and water. This can improve comfort in bright conditions, especially while driving or spending time outdoors. Polarization and ultraviolet protection are separate features, so always confirm the UV rating even when a lens is polarized.
Coverage and Fit Matter
Larger lenses and close-fitting frames can reduce the amount of sunlight reaching the eyes from the sides. A secure and comfortable fit also makes it more likely that you will keep your sunglasses on when you need them.
What to Check Before You Buy
• Look for UV400 or 100 percent UVA and UVB protection in the product description.
• Choose a frame that covers the eyes comfortably without touching the eyelashes or cheeks.
• Treat polarization as a glare-reducing feature, not as proof of ultraviolet protection.
• Buy from a retailer that clearly states the lens specifications.
A Practical Choice for Gulf Sun
Strong sunlight is part of daily life across the Gulf, so UV protection should be considered alongside style and comfort. Check the specifications on each IMMORTALE product page and choose a frame you can wear consistently.
Sunglasses should never be used to look directly at the sun, even when the lenses are marked UV400.