Featuring an adjustable folding nose piece, anti-slip inserts, and Zeiss anti-reflective technology, the Koo Spectro Sunglasses offer all of the features you need to protect your eyes on the go. Uncompromised clarity with a Zeiss Polycarbonate lens Panoramic vision with a single-lens frame design Minimized fogging with 4 ventilation ports Anti-slip MEGOL elastomer temple inserts provide added grip and comfort