you can buy crocs without the holes (specifically made for jobs where holes arent all that good idea)
http://www.jellyegg.c...es/sc1275/p11563.aspx for instance these, plus they can be washed at high temps to avoid infection. Someone in your other thread has suggested suede bit io wouldn't recommend it - all it takes is for 1 person to vom, Fosters or bleed on them and that's it!
I wore trainers for the vast majority of my nursing career