DISTRICT VISION engineers its eyewear in Japan using cutting-edge technology to provide optimal protection, comfort and clarity. - This 'Kohei Aero Blade' pair is handmade from lightweight titanium and durable polycarbonate - Anti-reflective, therapeutic-grade 'D+ Sapphire Mirror' lenses are shatterproof and help reduce strain on your eyes caused by physical exertion - Hypoallergenic rubber nose pads provide a comfortable fit