How to use: Wear this shirt as a base layer under your protective outerwear. It's perfect for workers in industries like Oil & Gas, Utility, Construction, and Industrial. You can use the scribe pocket on the left sleeve to keep small tools handy. Attention: Make sure to follow the washing instructions to maintain its flame-resistant properties. This shirt is tested to meet NFPA 2112 and NFPA 70E standards, so don't alter it in any way that could affect its safety features. Maintenance advice: You can wash it at home up to 100 times or send it for commercial laundry up to 50 cycles. It will still maintain its protection. Just use normal laundry detergents and follow the care label instructions.