Help & FAQ
EPHIU / HELP & FAQ
A clearer answer.
An easier choice.
Find the details that help you choose, care for, and enjoy your sunglasses.
What do polarized lenses do?
Polarized lenses help reduce reflected glare from surfaces such as roads and water. EPHIU uses polarized TAC lenses, with 99.7% glare reduction in lab testing.
What is UV400 protection?
UV400 protection blocks 100% of UVA and UVB rays up to 400nm. Polarization and UV protection describe different lens features.
Are EPHIU sunglasses made for running?
Our sports sunglasses pair a 22g TR90 frame with no-slip grip pads to help keep them comfortable and in place while you move. Product testing covered 500+ trail miles.
How do I choose my fit?
Compare the measurements with sunglasses you already wear comfortably: 54mm lens width, 18mm bridge, 141mm frame, and 132mm temples. Explore the Fit & Lens Guide.
Is mirrored the same as polarized?
No. A mirrored finish describes the reflective look of a lens. Polarization helps reduce reflected glare. Check the product photos and details for your chosen pair.
How should I clean my sunglasses?
Rinse with lukewarm water to remove dust and grit. Use mild soap and a microfiber cloth, rather than paper towels or clothing. Store in the hard case and avoid leaving them in extreme heat.
Where can I find shipping and return information?
All US orders ship free, with no minimum purchase. We offer a 90-day return window and cover return shipping for product quality issues. For other return requests, contact us to confirm shipping arrangements. See our Shipping Policy and Return Policy for delivery details, eligibility, timing, and costs. Contact service@ephiu.com with your order number if you need help.
What does the warranty cover?
The 12-month warranty covers defects in materials and workmanship. For a warranty question, contact service@ephiu.com with your order information.
What payment methods do you accept?
We accept PayPal and major credit and debit cards via PayPal. To pay by card, select PayPal at checkout, then choose “Pay with debit or credit card” when available. PayPal may offer guest checkout; availability depends on your location and PayPal’s eligibility checks. Available payment options are shown during checkout.