The Titan, from the mountain to the ocean and everything in between!! The ultimate sport performance eyewear letting athletes take full advantage of Blocs wide range of performance lenses.The Titan lens replacement system makes it very easy to change lenses whenever and wherever life takes you.You simply fold in the temple which unlocks the lens. It doesn’t get any easier. The rest is easy….The KARBON TX™ frame and bi-core interchangeable injected temples are light and comfortable making the Titan the perfect choice for all outdoor sports.See Blocs Titan accessories and spares for Optical inserts, straps and more.XTR Karbon8 lenses optimize vision in virtually all-light conditions. We have a lot to offer!! Conditions change and so should your lenses. See our Lens simulator.All of our lenses are optical Class One and give exceptional clarity as well as providing Maximum protection against UVA/UVB and harmful blue light up to 400nm. Distortion free and impact resistant    Features: Adjustable nose pads Sports hinges Easy quick lens change system Lightweight BX1000 core injected temple tips Suitable for medium to large faces Blue mirror Category 3 lenses