For a summer on the French Riviera, linen is the most breathable fibre for curtains and light covers, hemp is the toughest for a sofa you use every day, and raw cotton is the softest and most affordable for a room you live in without fuss. That is the short answer. The longer one depends on your house, which way the rooms face, and how you spend June to September here.

In a hill village between Cannes and Grasse, the light is already strong by ten in the morning. It comes through the shutters, lays bright bars across the floor, then across the sofa. By midday in July, a poorly planned room feels heavy. The right fabric does not fix everything, but it changes how a room feels. At the atelier, that is almost always where we start when someone wants to refresh an interior without major work.

Why the fibre matters as much as the colour

People usually pick a fabric for its shade. In summer, the fibre matters at least as much. A breathable material lets air move and releases moisture quickly. A material that holds heat keeps you damp and makes a seat unpleasant in the hot hours.

Linen, hemp and cotton each have their own temperament. Linen has hollow flax fibres that let air through and wick moisture faster than cotton. Hemp regulates temperature well and resists rubbing better. Cotton feels lovely but holds moisture longer, which makes it a little clammy in a room with no air conditioning at the height of summer. Three natural fibres, three uses.

Linen, the summer fibre

When you want a room that breathes, linen comes first. It is light, it dries fast, and it ages well. Its slightly dry hand stays cool to the touch even when the air is heavy.

For windows, we like a sheer linen voile that filters the light without closing the room off. Riviera light is beautiful, so it makes sense to keep it and soften it rather than block it. For fuller curtains, a medium-weight linen hangs well and lets air through in the evening, when you open everything to bring in the cool.

Washed linen deserves a mention. It is made by repeated hot washing that breaks the stiffness out of the fibre. The cloth turns soft and slightly crumpled, with that relaxed drape that suits a village house or a holiday home so well. For removable sofa covers, throws and bed linen, it is our first choice. It asks nothing of the iron, and its lived-in look forgives daily use.

Hemp, for a sofa that gets used

Hemp looks like linen from across the room, but it is tougher. The fibre takes repeated rubbing better, which makes it a good cover for a sofa used every day, in a house with children or with friends who visit for the summer.