District Vision Nagata Speed Blade Limestone, D+ G15 - Four Base Frame - Classic Aviator Shape - Designed to Protect the Eyes & Enhance the Field of Vision - Frame Constructed from TR90 Injected Nylon with Beta Titanium Armature & Hardware - Signature D+ Therapeutic Grade Lenses Constructed from Proprietary Form of Shatterproof Polycarbonate - Lens Interiors Treated with Both Anti-Reflective & Oleophobic Coatings for Holistic Eye Protection & Water & Oil Repellency - Fully Adjustable Hypoallergenic Rubber Nose Pad & Temple Tips Provide Secure & Customizable Fit - Comes with Soft Case - Never Worn