The Swap MAG from Gateway Safety is a bifocal safety eyewear product that can be worn as either a spectacle or a safety goggle. It provides bifocal diopter levels from 1.5-2.5 in clear anti-fog and gray anti-fog lens options. Swap the temples for a head strap (included) with the simple push of a button to convert from safety glasses to safety goggles. Lined with a smooth, soft foam, Swap MAG also helps block dust and debris.
Click here for more info