Nagata Speed Blade Infrared, D+ Black Rose

Made in Japan.

The Nagata Speed Blade for runners is an ultra-lightweight nylon and titanium frame construction. Our D+ lens is handcut and polished in Japan for unrivaled visibility in various performance conditions. D+ Black Rose is an advanced sports lens engineered for trail running and physical pursuits that involve variable light conditions. The lens allows 15.67% of visible light transmittance. The lens also offers 100% UVA/B protection while transmitting 14.19% of blue light.