Made in Japan.

The Nagata Speed Blade for runners is an ultra-lightweight nylon and titanium frame construction. Adjustable nose pads and temple tips ensure a secure, personalized fit, reinforced with a grade 2 titanium core in the temple tips for added strength. Our signature D+ therapeutic-grade lenses are crafted from a shatterproof polycarbonate compound. The interior surfaces feature anti-reflective and oleophobic coatings, providing comprehensive eye protection while repelling water and oil.r unrivaled visibility in various performance conditions. D+ Red Mirror was developed for physical pursuits requiring maximum sun protection. The mirror coating facilitates additional infrared screening. The lens offers 100% UVA/B protection while transmitting 14.80% of visible light and 15% of blue light.