How to use: Put on this long-sleeve T-shirt just like you would any other shirt. If you're in a high-risk environment, wear it under your protective outerwear for extra protection. Attention: This shirt is designed for specific work hazards, so don't use it in other situations. Also, make sure to follow all safety regulations at your workplace. Maintenance: You can wash it at home up to 100 times, or send it for 50 commercial laundry cycles. It will still keep its flame-resistant quality. But avoid using harsh chemicals or bleach that could damage the shirt's protection.