The Shinobi Sport performance sunglasses are our aggressive premium model, with a fixed lens attachment for high-speed activities. Poor visibility will no longer affect you. The Shinobi features the same top-class, 2.2 mm thick, machine-ground Toric lenses as the Ronin and offers an extremely stable lens mounting technology that is easy to swap. Slide the two buttons back on each temple, squeeze the center of the nose bridge, change the lens and let it click back into place immediately. The Shinobi provides an excellent fit for all of our helmets, with temples designed to not interfere and to maximize comfort. The set includes a hard case, a micro pouch and three nose pieces so you can find the perfect fit.