To dream of a canvas shoes represents a casual attitude or approach to a situation. An approach to life or a situation that is laid back. Not taking anything too seriously or telling yourself that you’ll just see how something goes.
Example: A man dreamed of wearing ugly light green canvas shoes. In waking life he was trying hard to respect someone he didn’t like as he read through that person’s research work. The canvas shoes reflected the casual attitude he was attempting to hold towards the person while being aware of himself not liking them.