I dont own any crocks and they are bulky too. Any shoe that can slip on easily works. When you get to the boot room you have a Cubby Hole for your boots and shoes. You take the boots out and put in the shoes. Same thing when you come back. Hose off the boots take out your shoes and then put your boots in the cubby hole. Easy ANY shoes will work I have even used the slippers from the cabin.
