Act as a cutting-edge product designer with 10+ years of experience in wearable tech. Design a pair of augmented reality sunglasses tailored for urban navigation. The glasses should feature [real-time holographic directions], [adaptive tinting for sunlight], and [haptic feedback for alerts]. Emphasize a sleek, minimalist design with [lightweight titanium frames] and [modular lenses] for customization. Include subtle branding on the [temple arms] and ensure the AR display is seamlessly integrated into the lens. The product should appeal to tech-savvy urban commuters who value both functionality and style. Render the design in a high-end, futuristic aesthetic with a focus on clean lines and premium materials.