SB74WMD Trifecta Black frame with Wire Mesh lens ANSI Cut Level A4 parts handling and maintenance ANSI Class 1 parts handling and maintenance Spunbond Polypropylene shoe covers offers lightweight protection against dry particulates Polyamide coated non skid surface on bottom of sole to reduce slipping Roomy construction to fit most shoe sizes Elastic band at top of shoe to keep dirt off or on the shoe One time use 1 requirements for screen lenses PYRAMEX SAFETY Trifecta Black frame with Wire Mesh lens Wrap around black wire mesh lens Provides excellent eye protection for work environments with high humidity that require impact protection Meets ANSI Z87