The Tifosi Crit glasses have been designed to provide comfort and performance for every ride. Side vents provide the airflow needed to prevent fogging at high speeds. Scratch and impact-resistant lenses protect your eyes from the elements. Features: TR-90 Grilamid plastic frame material Sold with 3 interchangeable lenses (smoked, red, clear) Polycarbonate lenses Ventilated lenses Interchangeable lenses Hydrophilic rubber 100% UVA/UVB protection Adjustable temples Zipped and microfiber case Weight : 37g