how are clogs supposed to fit.........really?

Open-Backed Clogs
Your heel should be at the very back of the clog (maybe even a slight bit over). In this way, you have the most secure fit and are best able to control your clog.

Closed-Back Clogs
These stylish clogs offer protection for the back of your foot and keep the clog from slipping off. However, these are clogs (not shoes!) and will come UP & DOWN on your foot. Accordingly, you need enough room behind your heel to move freely. (If you rub against the back, you will get blisters!)