Soft ear pieces guarantee a stable and low pressure fit. Brow guard provides protection from flying particles, dirt, and dust. Flexible side arms with seven inclination levels. Unique dual-injection hard and soft components. Soft flex nose loops ensure even weight distribution on nose bridge. 100% UV protection. 100% metal free.Compliant with ANSI Z87.1.2015, CE EN166, and CSA Z94.3 (Add +1.0 is not compliant with CSA Z94.3).