White cotton has one rule and everyone knows it: something will happen. Grass, wine, a rogue condiment at the worst possible moment. We know this. We wear it anyway, because nothing else has quite the same effect. There is a cleanness to white cotton that other fabrics and other colours simply cannot replicate. It looks expensive without trying. It photographs brilliantly in natural light. It makes a summer occasion feel genuinely considered rather than just dressed up.

The dresses we have picked here earn the risk. The cuts are good enough that they justify the care label anxiety. Some are relaxed and easy, the kind of thing you throw on for lunch that somehow looks intentional. Others are more structured, proper event dresses that happen to be white cotton rather than silk or chiffon, which is exactly what makes them interesting.

We looked specifically for weight and quality in the fabric, because thin cotton goes transparent and loses its shape before the afternoon is over. These hold up. They look as good at the end of the day as they did at the beginning. White cotton worn well is a statement that never dates.