You need these.
If, by some horrible twist of fate, you could only have ONE summer sandal, this would be it. The Margo sandal by Loeffler Randall. Feminine, yet interesting! Weighty, yet light! An excellent warm neutral colour that goes with absolutely everything... extremely comfortable... secure on the foot... need I go on? Phenomenally beautiful and excellent quality.
If however, you can have more than one summer sandal, that's excellent, because you will need something else to wear when you realize that they last longer if you only wear them, say, every other day.