Flats like this are generally pretty comfy and often have room for an insole; a little added support is always nice! But these shoes are not that comfortable and don't leave room for an insole, really. I find them to be too narrow through the toe so my toes feel a tad cramped, the ball of my foot is sort of uncomfortable, and the fabric scratches across the top of my toes a little. It's not completely awful but certainly not what I was hoping for. Like another reviewer, I find the fabric to be kind of stiff and scratchy along the back and it irritates my heel some. The length of the shoe seems to be fine, so it's not that going a size up would have fixed the problem. That having been said, I do like the look of the wool and it's a cute shoe. I usually take a standard width shoe but have been know to take a wide in certain brands. If you've got wide feet or borderline feet like me, I would not recommend this shoe.