- Ho’okipa Ultra stands out for its Maui Ultra lenses, which are ultra-lightweight and impact-resistant. This model offers exceptional clarity and outstanding color intensity, making it ideal for tackling even the most demanding outdoor activities with style and freedom.Urethane lenses are lightweight, impact-resistant, and offer excellent optical clarity. They combine the sharpness of glass with the comfort of plastic, making them ideal for everyday and active use. Many high-end brands use urethane-based materials for premium performance and UV protection.