Material: PC TAC polarized lenses feature a UV400 protective layer that blocks 100% of harmful UVA and UVB rays. They help restore true color and reduce reflected or scattered light. TAC polarized triacetate lenses are impact and scratch resistant, lightweight and durable. Lightweight TR90 frame: These cool black unbreakable sunglasses are made from premium TR90 material, which is ultra-light, flexible, and durable. The frame is crafted with flexible thermoplastic memory material using advanced technology. Equipped with anti-slip nose pads for comfort and skin-friendly wear. Features a unique flexible hinge design to ensure a secure fit without head pressure. Perfect all-rounder: The frame design offers a classic and timeless style for men, enhanced with sporty elements. Ideal for driving, fishing, climbing, running, hiking, biking, skiing, boating, and other outdoor activities.