I second going a size down. You'll probably regret it if you don't. I order mine so I don't have the option of trying them on...too lazy to shop at stores nowadays. Anyway, my daughters and I all have several pair of uggs. Love them. Very comfortable. My daughter's first pair wore out after a year, but her other pairs have lasted forever...so have mine. Mine stay clean. I haven't had a reason to clean them.