How to use: Simply put on the shirt like any other work shirt. The metal snap buttons make it easy to get dressed and undressed. The chest pockets are great for storing small tools or a pencil. Applications: This shirt is perfect for various industries like oil and gas, electrical utility, construction, welding, and other industrial work. Note: This shirt is not OSHA/NFPA certified. If you need certification, choose another option. Maintenance: You can wash this shirt at home. It's been tested to keep its protection through 100 home washings. Just follow normal washing instructions, and your shirt will stay in good condition for a long time.