The Arcore COBRA ULTRA are popular hydrodynamic swimming goggles. They feature low-profile lenses, hi-tech moulding and sharp shape. They minimize drag and improve glide in elegant, watertight design. The curved shape of the lens dramatically improves peripheral and frontal vision for an expanded field of view. The high-performance lenses are made of hard polycarbonate with an anti-fog treatment for crystalline visibility. Equipped with dual silicone strap with adjustable RFA clip and 5 interchangeable nose bridges.