Linen shirts and linen trousers shrink a little in their first wash, and a tumble dryer on high heat can take them further; on the lowest dryer setting, or hung to dry, they keep their size. After that first settling, washing at 30 or 40 degrees does not make linen keep shrinking.

Linen does shrink — but the degree of shrinkage, and whether it is a problem, depends entirely on two variables: the quality of the linen and how it is washed. Understanding both means the shrinkage question becomes manageable rather than a reason to avoid linen entirely.

The first wash. Certified Belgian linen will shrink slightly on the first wash — typically a few percent in both length and width, varying by construction and wash temperature. This is the natural fibre releasing the tension accumulated during weaving and finishing. It is not a defect; it is the fabric settling into its natural state. After the first wash, a correctly cared for Belgian linen garment will not shrink significantly in subsequent washes at the same temperature.

The temperature variable. The single most controllable factor in linen shrinkage is wash temperature. Washing at 30 degrees: minimal shrinkage beyond the first wash. Washing at 40 degrees: acceptable for most linen garments with minimal additional shrinkage. Washing at 60 degrees or above: significant shrinkage risk, colour degradation, and accelerated fibre weakening. For PP linen shirts, the routine is a gentle cycle at 30 degrees; 40 degrees remains the upper limit, and nothing hotter is ever needed.

Can you wash linen at 40 degrees?

Yes. Forty degrees sits within what linen tolerates, and a garment that has already been through its first wash will change very little at that temperature. The first wash is where a 40-degree cycle shows most: it may draw a fraction more from the fabric than a 30-degree cycle would. What matters more than the number is consistency, because a garment that has settled at one temperature stays stable as long as it is washed at that temperature or below, on a gentle cycle.

The tumble dryer. Tumble drying on high heat is the fastest way to cause significant linen shrinkage. The combination of heat and mechanical agitation causes the flax fibre to contract. If you use a tumble dryer, use the lowest heat setting and remove the garment while still slightly damp. Hanging to dry works just as well.

Do linen trousers shrink in the dryer?

Linen trousers behave exactly as linen shirts do, because the fibre is the same. What differs is where the change shows: a centimetre lost in a shirt body goes unnoticed, while a centimetre lost at the hem of a trouser is visible at the ankle. On high heat, the dryer is where trousers lose that length. On the lowest setting the difference from hanging them is negligible, and taking them out while slightly damp lets the legs fall straight. Our note on whether linen can go in the dryer covers the settings in more detail.

Does linen shrink every time you wash it — or does it expand?

Neither, once it has settled. Linen does not shrink further with every wash at the same temperature; it shrinks again only when the conditions change — a hotter cycle, or a dryer on high heat. Nor does it expand in the wash. What readers notice is the opposite movement during wear: linen relaxes a little at the knees, the seat and the elbows over a day, and the next wash returns it to its settled shape. That give and return is explained in our piece on whether linen stretches.

Does a linen-cotton blend shrink after washing?

A linen-cotton blend shrinks too, because both are plant fibres that settle in their first wash and react to heat in the dryer. How much depends on the proportion of each fibre and on how the cloth was finished, so a blend is less predictable than pure linen. Every PP linen garment is 100% linen; the differences between the two are set out in our comparison of linen and linen blends.

Linen after the wash

Fresh from the wash, linen feels firmer and shows creases. Ironed or steamed while still slightly damp, it falls smooth again, and with each wash the fibre becomes softer to the hand. That softening is the reason linen garments are kept for years rather than seasons.

The pre-shrunk question. Some linen garments are pre-washed by the manufacturer to reduce first-wash shrinkage. PP linen shirts are not pre-washed — the progressive softening that makes certified Belgian linen improve over time begins with the first correct wash, and pre-washing would interfere with this process.

Buying size for shrinkage. If you are between sizes in a PP linen shirt, take the larger. The slight first-wash shrinkage and the natural drape of linen means the larger size will settle into a better fit after the first wash.

How to Wash Linen Shirts · Linen Care Tips · Men's Linen Collection