Using this Sitka men's hoody is easy. Just put it on as your base layer for waterfowl hunting. The form - fitting hood can be adjusted to your comfort. The center chest zipper can be opened to cool down when you're hot. When you need to take off an outer layer, use the stretch thumb loops to avoid pulling the hoody out of place. The built - in face mask can be pulled up to conceal your face during the hunt. For maintenance, it's best to follow the care instructions on the label. Usually, machine - washing in cold water and tumble - drying on low heat is a good way. Avoid using harsh detergents as they may damage the Polygiene® Odor Control Technology. Also, store it in a dry place when not in use to keep it in good condition.