I have 6 pairs of sanuks from lined warm to these oiled leather. the color is like an old bomber jacket. i would like to see a sock liner bed in some of their shoes/sandals, or a slight arch soft liner footbed, as i end up putting dr scholls in the sandals/shoes for added softness. Yes there is some room for some orthotics.  Otherwise, they are pretty much the most comfortable shoes/sandals i have ever worn. They are true to size. If you wear socks, then go a half size up. I wear most of mine sockless, but a thin sock in the colder months.  That said, you may not like the footbed material of this shoe/sandal on bare feet. I have the soft scholls between my feet and the material used on the footbed which is not smoothe, and grips a bare foot. They are super flexible in walking, so that adds to the comfort. I have miles on all my sanuks, and no discomfort.