I sized up 1/2 size in my suede revas.. They're super comfy standing/around the house, but after walking for a long time, my toes felt pushed into the toebox, and my heels hurt from lack of padding.
Ill warn you that I have pain-prone, wide feet and usually wear shoes w/ a lot of padding/arch support, *and* this was my first time wearing them. I actually havent worn them since, dt cold weather and the fact that I walk a lot.. but other ladies say theirs are v. comfy
Im thinking I perhaps should have gotten a whole size bigger, but it's too late now..it seems as if they might have been to big then, though. Next time I wear them I'll use insoles