The Fly 3 sunglasses from Bloc are lightweight in design, a perfect comfortable fit for all sport and lifestyle activities. With their one-piece rimless design, they perform as impressively as they look. A perfect fit whether you use them as your everyday shades or for your high-energy activities. Suitable for all-day wear thanks to their durable, lightweight design and Karbon TX bi-core injected structure. The distortion free, impact resistant XTR Karbon8 optical class one lenses provide maximum protection against UVA, UVB and other harmful blue light up to 400nm.