Using this Squishmallows lunch bag is super easy. Just open it up and put your lunch inside. When it's time to clean, use a damp cloth to wipe the outside gently. Avoid using harsh chemicals as they may damage the cute Squishmallows prints. Also, don't overstuff the bag to keep its shape. Keep it in a dry place when not in use, and it'll stay in great condition for a long time.