Tough as nails and big on style, the Tifosi Duro Sunglasses come in a lightweight package with interchangeable lenses. Interchangeable lenses make these glasses very versatile - change from red, brown and clear in an instant. The hydrophilic and adjustable nose pieces and temples will provide a perfect fit for any activity while the vented lenses keep air flowing and fogging to a minimum. These glasses are built for durability featuring virtually indestructible Girlamid TR-90 nylon frames and polycarbonate lenses.