Tough as nails and big on style, the Tifosi Duro Polarized Sunglasses come in a lightweight package with interchangeable, polarized lenses. Interchangeable lenses make these glasses very versatile - change from brown, ac red and yellow in an instant. Polarized lenses are injected with polarized material that blocks light reflecting off any horizontal surface to reduce glare and eye fatigue. The Duro are perfect for watersports, snow sports, driving and casual wear. These glasses are built for durability featuring virtually indestructible Girlamid TR-90 nylon frames and polycarbonate lenses. The Duro have a Medium to large profile.