I'm looking for some summer weight sandals for work, so they must be closed toe but every search seems to lead me to espadrilles which don't seem smart enough. I work in a school office so I do need to be fairly smart, but not overly so. Neutral colour if possible or cheap enough to buy multiple pairs. Don't mind a small heel or a flat, and I have very wide feet so that often affects what I can wear.
Any suggestions oh wise style and beauty squad?