The Bloc Twenty Five sunglasses combine sleek modern styling with high-performance protection. Featuring a shiny black frame and Cat 3 lenses, theyre designed for athletes and adventurers who demand clarity, comfort, and durability in all light conditions. Shiny black frame lightweight, durable, and built for active, all-day wear Non-slip hypoallergenic temple tips ensure a secure and comfortable fit during sport or movement Screw-free sports clip hinge provides flexibility, strength, and long-lasting reliability Ideal for outdoor, mountain, and everyday environments Polycarbonate optical class 1 lenses distortion-free, impact-resistant, and crystal clear Maximum UVA & UVB protection Tested to BS EN ISO 12312-1:2022