FR ARC RATED SAFETY SHIRT- Oberon Flame Resistant and Arc Rated Long Sleeve Cotton T-shirt for men is designed to keep electrical workers in utilities, manufacturing, and oil and gas safe STAY SAFE - Meets Arc Flash PPE Category 2 standards with arc rating of 11 cal/cm2; Material and all components meet NFPA 2112-2023, certified to UL; Meets ASTM F1506-20A standards, NFPA 70E-2024 and CSA Z462-2024 HI VIS - Stay seen with hi vis yellow and flexible StarTech FR reflective tape that meets ANSI/ISEA 107-20 Class 3 Type R standards BREATHABLE - Lightweight 100% FR cotton longsleeve is comfortable for all day wear; Stay cool and dry as the job heats up or layer up in cool conditions FUNCTIONAL and DURABLE: Front pocket for storage; Made of high performance interlock knit for strength and durability