wide temples constitute a protection also on the sides
at the ends of temples there are small holes, to which e.g. a string could be attached, owing to which it is possible to hang the glasses on the neck
intended for protecting eyes against chips of solids, which can occur during manual working and machining of metals, wood, plastics, ceramic materials, extraction of minerals, etc.
provide protection against small solid splinters with impact energy up to 45 m/s (F)
they conform to the requirements of the EN166 standard.
