The Shinobi sport performance sunglasses is Sweet Protection's aggressive Premium-model with solid lens attachment for high speed activities. Poor vision shall no longer be your master. Benefitting from the same premium 2.2mm thick machine edged Toric lens from the Ronin, the Shinobi has an extremely stabile and easy-to-switch lens attachment technology. Slide back the two buttons located on each temple, squeeze in the middle of the nose bridgechange lens, and snap right back in on the go. The Shinobi provide excellent fit to all our helmets, with temples designed to minimize intrusion and maximize comfort. The purchase includes hard case, microbag and three nose pieces so you can find your perfect fit. RIG® lens technology: developed by Sweet Protection to provide superior contrast, minimum color distortion and reduced eye fatigue 2.2mm Toric lens with high impact resistance Super oleophobic- and hydrophobic coating Hard-coating on both sides of the lens for easy cleaning and durab