Sira AR-1 Amber Rush 3205 The Nagata Speed Blade is

The Nagata Speed Blade is a precision-engineered six-base sunglass system designed for runners and high-speed outdoor activities

The Nagata Speed Blade for runners is an ultra-lightweight frame constructed from nylon and titanium

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this square silhouette explores depth and structure through a refined contemporary lens

reinforced with a Grade 2 titanium core in the temple tips for added strength

Sira AR-1 Amber Rush 3205 The Nagata Speed Blade isWith Sira, SATO refines proportion into attitude. Clean lines, balanced curves, and a silhouette that feels both contemporary and instinctive create a frame with quiet confidence. Effortlessly versatile, Sira blends precision with understated character.