Using this Sea to Summit Reactor Extreme Mummy Sleeping Bag Liner is a breeze. Just unroll it and place it inside your sleeping bag. The drawcord footbox and shoulder openings can be adjusted to your comfort level. When it's time to go, roll it up and put it in the storage case. As for maintenance, it's important to follow the care instructions on the label. Generally, you can machine - wash it on a gentle cycle. Avoid using harsh detergents or bleach as they might damage the HeiQ Fresh odor control technology. Store it in a dry place when not in use. If you notice any signs of wear and tear, contact Sea to Summit as it comes with a lifetime guarantee.