Using this CAT Arctic Zone vest is a breeze. Just zip it up using the full front zip, and adjust the drawcord at the bottom hem to fit you perfectly. You can keep your phone in the special pocket with the wire management system and other small items in the various pockets. When it comes to maintenance, you can machine - wash it on a gentle cycle in cold water. Avoid using bleach or fabric softeners as they might damage the fabric and the water - resistant finish. After washing, hang it up using the heavy - duty locker loop to dry. And remember, don't iron it too hot to protect the logo patch and the fabric. Also, store it in a cool, dry place when not in use.