SMITH Optics I/O MAG Low Bridge Fit Unisex Snow Winter GogglesThe Smith I O MAG combines the quick and secure Smith MAG interchangeable lens system with ChromaPop lens technology delivering you complete optical clarity. The MAG system blends the convenience of an interchangeable magnetic lens system with the security of a quick lock detachment. The I O MAG includes two lensesa bright light and a low light performance lenswith ChromaPop clarity and carbonic X durability. Additional features include AirEvac