This T-shirt may be lightweight but it doesn't sacrifice durability. It offers the best in comfort and function, finished with a standout graphic. Stretch fabric and raglan sleeve construction make it exceptionally easy to move around in on the job. Safety: CAT_rated: CAT 2 Rating for dual-hazard flame resistant workwear to help protect against flash fire and electrical arcs ARC rated: 8.7 cal/cm2 Rated to protect against second degree burns when exposed to an electrical arc NFPA Compliant: