NSA FR Control 2.0 T-Shirt Proactively regulates skin temperature (+/- 3 degrees) Heat stress reduction Reduces perspiration by 34% Superior moisture wicking & dry rate Odor control Lightweight, breathable fabric Inherently Flame Resistant (FR protection that won't wash or wear out) Stretch for comfort & flexibility Raglan sleeve for optimal range of motion FR Control 2.0™ is an inherently flame resistant base layer that proactively regulates your skin temperature. The fabric features odor control technology and superior moisture wicking to make sure you feel comfortable on the job. This product comes in navy or desert sand and is offered in long sleeve and short sleeve tops, long underwear, balaclavas, neck gaiters, and women's sports bra. Compliant to CSA Z462 for Arc Flash (Canada) Compliant to NFPA 70E for Arc Flash Complies with OSHA 1910.269 Compliant to ASTM F1506 for Arc Flash Fabrics 5.5 oz Modacrylic Blend Arc Rating 4.0 cal/cm2, HRC/CAT 1