These are official US Military Issue sun/wind/dust goggles and their design allows them to be worn over glasses or with a ballistic helmet, if required, and are essential for desert operations.

The frames are manufactured from moulded rubber with a foam lining and they have an adjustable headstrap in olive drab.

They are supplied with two easily changeable plastic shatter resistant lenses, one clear and one tinted neutral grey, that are flexible, shatter resistant and much lighter than glass. 

They are supplied with care instructions and a cardboard case.