Features: Inherently flame resistant - will not melt or drip Proactively regulates skin temperature (+/- 3 degrees Heat Stress Reduction Reduces perspiration 34% Lightweight, breathable fabric Odor Control Superior moisture wicking & dry rate Stretch for comfort & flexibility Raglan sleeves for optimal range of motionStandards: Compliant to ASTM F1506 for Arc Flash Complies with OSHA 1910.269 Compliant to NFPA 70E for Arc Flash Compliant to CSA Z462 for Arc Flash (Canada).