1.leaves both hands free
2.optical polished glass lens
3.tilts up when not in use
4.adjusts to all head sizes
5.leather compact band
6.can be worn over prescription or safety eye glasses
7.lenses are ground and polished to precision ophthalmic standards
8.The OptiVISOR frame is made of lightweight,durable impact resistant materials
9.The comfortable continuous headband is fully adjustable to fit any size,quickly and easily
10.Adjustable pivot knobs hold visor in any position for easy flip-up viewing.
11.Interchangeable lens plates are available for various applications