The MILWAUKEE® 4XL/5XL AR/FR CAT. 1 Class 2 High Visibility Safety Vest is engineered to carry more with lightweight 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. These class 2 vests are compliant with NFPA 2112 for protection against flash fires and arc flash hazards. AR/FR lightweight WESTEX® DH by Miliken® DH material provides added comfort when wearing the vest as part of a complete AR/FR garment system and rated to an ATPV of 5.7 cal./cm². The high visibility reflective safety vests are required when working around traffic going 25 MPH or working around heavy machinery. This includes construction, road construction, traffic direction, utility crews, and survey crews. AR/FR CAT. 1 Class 2 Safety Vests are ANSI compliant and can be customized by adding a logo.