The Tifosi Synapse Interchangeable Smoke Lens Sunglasses features the wider, super-secure arm design of the recently launched Tifosi Camrock , the new Tifosi Synapse delivers open lens performance and style in equal measure. Virtually indestructible Grilamid TR-90 nylon frames keep the Synapse lightweight, with full-coverage lenses protecting your eyes from harmful UVA/UVB rays. Vented lenses decrease fogging and the fully adjustable, slip resistant hydrophilic rubber arms and nose pieces ensure a custom fit. The Matte Black Synapse comes equipped with a Smoke, All Conditions Red and Clear Interchangeable lenses, a zipped hardshell case and a microfibre cleaning pouch. Tifosi Synapse Interchangeable Smoke Lens Sunglasses Features Hydrophilic rubber ear and nose pieces for a no-slip fit Adjustable nose and arm pieces Vented lenses increase air circulation & reduce fogging Fits M-XL face sizes 30 grams 100% protection from harmful UVA/UVB rays Lifetime Warranty against manufacturer defects