The Milwaukee S/M AR/FR CAT. 1 Class 3 Mesh High Visibility Safety Vest is engineered to carry more with breathable protection. This Arc-Rated and Flame-Resistant Vest has ten pockets, including pen pockets, a chest pocket with closure, and an internal pocket for easy access to essential items while on the job. The yellow safety vest features a quick internal size adjustment for better fit and a durable pass-through slit for fall protection gear. AR/FR breathable, anti-static GLENGUARD Mesh provides added comfort when wearing the vest as part of a complete AR/FR garment system and rated to an ATPV of 4.0 cal./cm. Class 3 high visibility vests are recommended for working in environments requiring additional visibility, traffic traveling over 50 MPH, and/or around heavy machinery. AR/FR CAT. 1 Class 3 Safety Vests are ANSI compliant and can be customized by adding a logo. Milwaukee Tools AR/FR Cat. 1 Class 3 Mesh Safety Vest High Vis 48-73-522