I had never heard of PI's, years of second best
I do highly recommend, these shoes.

i'm not a runner, I'm a hack walker,and I walk all sorts of places beach, river, bush, rocks allsorts of terain.

These are half a size small, not for wet conditions although I don't wear socks so it hasn't mattered when I've walked in water.
I'll be honest my second pair are on order, only one comment, I bought the electric blue, I cannot work out why the red are $40 more expensive