Let me paint you something these are custom hand painted calculus toms, covered with calculus formulas and derivatives. The artwork will never come off, guaranteed. These are carefully hand-painted with a special mixture of paint that is durable & waterproof. – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – -. The artwork will last as long as your shoes last, guaranteed. Shoe sizes: toms shoes run true to size with a medium width. If you’re in-between sizes, probably go with the lower size since they can slightly stretch after being worn for a few weeks. I typically need about 4 weeks to finish orders due to bulk of orders. Expedited next day completion options are available (just message me, i respond very quickly). If you have any further questions, just send me a message thanks very much. This item is made of vans and shoes, toms, custom toms, custom slip ons, custom vans, paint, custom vans shoes.