Engineered in Japan and tested by athletes over the course of two years, the Nagata Speed Blade Sunglasses represent a careful fusion of curated style and undeniable performance. Premium titanium frames are accompanied by hypoallergenic rubber nose and temple pads for a slip-free fit, while D+ lens technology provides variable light transmission for enhanced optics in changing conditions. Performance sunglasses for a range of outdoor activity. Proprietary polycarbonate lens material is shatterproof. Titanium frames are very light yet incredibly durable. Oleophobic lens treatment repels water, dirt, and smudges. Lenses provide 100% protection from harmful UVA/UVB rays. Interior lens is treated with an anti-reflective application. Titanium frames won't rust, tarnish, or lose shape over time. Includes a custom HydraPak soft case for storage and travel. Color: green