HYPOALLERGENIC MATERIALS - CARFIA sunglasses are made with acetate frames that have a translucent frame. Acetate is a hypoallergenic, plant-based plastic that is safe for people with sensitive skin. POLARIZED LENSES - CARFIA Polarized sunglasses are the result of 30 years of innovation and research, blocking over 99% of reflected light. Polarized lenses can reduce glare and starlight caused by oncoming vehicles, and also help alleviate eye fatigue. UNIQUE DESIGN - Designed in a retro-inspired style, these lock-hole round sunglasses combine minimalist style with everyday comfort, making them a great choice for all-season outfits. COMFORTABLE TO WEAR - These sunglasses are comfortable and easy to wear, with no constriction or squeezing on the sides of the nose and ears, ensuring that they stay on, even during strenuous exercise. WELL-DESIGNED GIFT PACKAGING - 【Classic Round Women Sunglasses】【Velvet-lined Leather Case Reinforced Inside】【Soft Lenses Wipe】【Polarization Testing Card】【Product Manual】【100% Satisfaction Guarantee and 1 Year Warranty】