At 14.25 oz, this dual hazard Heavyweight pullover FR Sweatshirt provides durable CAT 3 protection with an arc rating of 34 cal/cm2, and is UL Certified to NFPA 2112 for flash fire. The generous cut of this sweatshirt allows for unrestricted movement while the rib knit cuffs and waistband keep it in place and prevent riding.