One-piece high definition low distortion interchangeable polycarbonate lens Light-weight polycarbonate frame material Adjustable temple tips Vented nose piece for maximum comfort Supplied complete with hard case & soft wipe microfibre carry pouch Prescription lens holder compatible Meets EN166-2001 standard for Personal Eye Protection offering protection against high speed low energy particles 100% UV protection in compliance with EN ISO 12312-1:2013, One-piece high definition low distortion interchangeable polycarbonate lens, Light-weight polycarbonate frame material, Adjustable temple tips, Vented nose piece for maximum comfort