Frankly I am a bit disappointed. I expected to find the same degree of comfort as my sanuk hemp sandals,but this is not the case with the sumos.
First of all I've had them for ovewr a week and I am still "breaking them in".
The problem I think might be the rugged leather uppers. The upper part of the shoe or "toe box" is too tight: L>R. Also, and this only happened with the right loafer, the achilles notch or "heel counter" made a small "rubbing" wound, called a "abrasion" in medical terms; this small wound is now healing. In order to keep on weariing them, I resorted to wearing low ankle socks, which is helping.
Don't get me wrong I am still satisfied with the worn look and yes..the comfort. I am hoping that after a few more days, they will be fine.
I shall keep you posted...As always I hope this humbly submitted review was helpful.

UPDATE: As I had expected, after "breaking in" the loafers fit just right and the "rubbing" on the heel is no longer a problem. Very nice shoes, ahem, sandals. I also love the freedom of wearing them everywhere!!!
I will be ordering the Kingston loafers.