Cycling sunglasses · Photochromic Cat 0 to 4 · Swiss TR-90 · 38g · Handcrafted in Korea

• Category 0 to Category 4 photochromic shift. Clear at 86.6% transmittance, darkening to 7.3% under UV.
• Optical clip-on compatible. Insert mounts behind the main lens, glazed to prescription by an optician.
• Silicone nose and temple contact points. Grip increases with moisture rather than decreasing, the reverse of bare plastic and acetate.
• Vented at the upper outer corner. Lens port paired with height-adjustable nose pads, moving air across the rear lens surface.

Lens category 0 to 4, VLT 7.29%. Adjustable nose pads. Tint runs lighter in high heat. Darkened state measures Cat 4, which is not permitted for driving. No replaceable lens on the photochromic lens collection.