Pillows work well, but buy at least half a size larger.
These shoes breathe well and are comfortable to wear when I'm on my feet 10 hours a day. They looked small in my usual socks. With thinner socks they fit well enough to hold on. A week later everything is fine.
Pros
So far so good - they've withstood walking, running and even hiking on various types of terrain.
Cons
A break-in period may be required for optimal comfort and fit.