They tend to run large and wide. As for the holes on top, the model I have is called the Aspen, and they have NO holes anywhere.......I'd buy the vented ones for summer and 'play' time, but they wouldn't be very practical on a Med/Surg floor, let alone in soggy winter Western Oregon. And I don't wear ANY shoe (except flip-flops) without socks......my feet are cold 10 months out of 12. Besides, as I'm always telling my 14-year-old son, wearing shoes w/o socks is just gross.....feet sweat, and then they STINK.

Yeeeeecccccchhhhhhhhh.