Tifosi: Building on the success of the dynamic Tifosi Crit, Tifosi Optics introduces the sleek new Synapse. With 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 Race Neon Synapse comes equipped comes equipped with Tifosi's most versatile Fototec Light Night photochromatic lens, with a Light Transmission range from 27.7% (fairly dark) - 75.9% (virtually clear). Light Night is colour-neutral for zero colour distortion. Includes a zipped hardshell case and a microfibre cleaning pouch. The Gloss Black Synapse comes equipped with Tifosi's dynamic Fototec High Speed Red Fototec photochromatic lens, with a Light Transmission range from 13.5% ( very dark ) - 35.3% ( variable conditions ) . Tifosi's Fototec lenses adjust rapidly to changing light conditions, utilising variable tint technology. Whatever the light condition, Fototec lenses enhance your performance and increase your comfort by supplying superior clarity and protection. Includes a zipped hardshell case and a microfibre cleaning pouch. Tifosi's Fototec lenses adjust rapidly to changing light conditions, utilising variable tint technology. Whatever the light condition, Fototec lenses enhance your performance and increase your comfort by supplying superior clarity and protection.• 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