FIT & DESIGN: Impacto lens technology is tested by Zeiss to provide the highest-level eye protection Sunglasses fit comfortably underneath hat brim during play and securely on top the bill as conditions change TR90 sport-specific frame with rust-proof cam hinges offers mobility with a secure fit Ri-Pel(TM) scratch-resistant lens coating repels dirt, oil, and water in tough weather conditions Flexible wrap frame design provides security without pressure ADDITIONAL DETAILS: Lenses produced by Carl Zeiss Vision Adjustable rubberized nose piece for superior comfort 68-9-121 Frame