Are canvas shoes ok to wear to the gym?

You can but they don't have much support. I wear my vans all the time when I'm playing tennis and don't have a any problems.

If you are just going to do weights. They will be fine. But if you are doing angling of cardio, you should really find shoes that match your foot type so that you don't have any knee tracking issues later in life.

The are probably better for things like lifting free weights, better balance. They are probably not the best thing for running on the treadmill.

who cares *****... you wear whatever the **** u wanna wear. you should buy some running shoes. thats what normal people wear at the gym..