TR-90 FRAME: Grilamid TR-90 (Plastic Titanium), produced through Swiss technology as a resilient thermoplastic memeroy material, is incredibly flexible, durable and lightweight. Frames made of TR-90 are more vivid and colorful than ordinary plastic frames. Also, TR-90 releases no chemical residues, is environmentally friendly, and meets European requirements for food-grade material
POLARIZED GREY LENSE: HD TAC lenses are extremely impact-resistant, block all harmful UV up to 400nm and offer superior visual clarity. Polarization sunglasses are essential for outdoor activities like driving, fishing, runing, hiking, cycling, skiing, snowboarding, boating, golfing etc
4 MORE INTERCHANGEABLE LENSES: Beside main polarization lense, we also provide 4 more lenses (Mirrored, yellow night vision, blue, clear anti-fog) to get you prepared for all conditions. Please be noted that these four lenses are designed for different occasions and NOT polarized.
STYLISH and COMFORTABLE! All major properties of our sunglasses, including impact resistance, flammability and biocompatibility, have been assessed following FDA regulations
30-DAY NO-HASSLE RETURN and LIFETIME BREAKAGE WARRANTY ON FRAME & LENS: The sunglasses dont fit you well? Just follow the Amazon return policy and get full refund. If the sunglasses dont meet your expectation, please dont hestitate to let us know because we are always here to help until 100% satisfaction