How do I remove the creases?

So I got these last month and they're already badly creased. I tried ironing them with a damp towel but it didn't do much good (as you can see on the left shoe) I want to know if I did something wrong or if I'm not doing it correctly. Do you have any tips for me? How do I remove the creases

So I got these last month and they're already badly creased. I tried ironing them with a damp towel but it didn't do much good (as you can see on the left shoe) I want to know if I did something wrong or if I'm not doing it correctly. Do you have any tips for me? How do I remove the creases