Now, there are some rules to bear in mind here. First, the roll neck in question must be fine-knit — for less bulk and breathability — so seek out light merino wool or ribbed jersey styles. Colour, too, is key. As purveyor of chic French style Sandro demonstrates, a pale pink roll neck works wonders to brighten up a crisp white cotton shirt — particularly teamed with a fuchsia blazer. Or make like & Other Stories and go tonal, with a colour matched roll neck and shirt combo. It’s favoured chartreuse, though if you’re in any doubt, stick with the basics — a white roll neck will look good under anything.