Three natural fibers do most of the work in a good summer wardrobe: linen, cotton, and merino wool. They aren't competitors so much as specialists — each one owns a different stretch of the thermometer. The mistake is asking which is best. The right question is which one for today.
Here's how we think about the three, and where each earns its place.
Linen — the hottest-day fiber
Linen is the most breathable of the three by a clear margin. The flax fiber is hollow and the weave sits open, so air moves through it and heat moves off your skin. It also has a dry hand — it doesn't cling when you sweat the way a damp synthetic does. On the genuinely hot day, the still-air terrace, the noon walk in July, nothing natural beats it.
The trade-off is the wrinkle, which by now you either accept or you don't. Linen creases because it breathes; the two come together. Our Linen Hooded Jacket (100% linen) and Linen Blend Knit Tee (52.8% linen) are the pieces we reach for when the day is simply hot and the goal is to stay cool and look unbothered about it.
Linen owns: peak heat, dry climates, the days you want maximum air and don't mind a crease.
Cotton — the all-rounder
Cotton is the diplomat of the three. Softer against the skin than raw linen, more structured than merino, and familiar to everyone. It breathes well, though not as aggressively as linen, and it takes color and holds a clean line better, which is why it's the natural choice for a trouser that needs to read sharp.
Its one real limit in summer: cotton absorbs moisture and is slower to dry than linen, so on the very hottest, most humid day it can hold dampness against the skin. For everything short of that, it's the safe, versatile middle. Our Business Casual Straight-Leg Trousers (78.3% cotton) and Cotton-Lyocell Colorblock Tee (48% cotton, all natural cellulose) live in this lane, comfortable across the widest range of ordinary summer days.
Cotton owns: moderate heat, the office, the days you want softness and a clean line over maximum airflow.
Merino — the temperature-swing fiber
This is the counterintuitive one. Fine-gauge merino wool belongs in a summer wardrobe — not for the peak heat, but for the swing. Merino regulates temperature in both directions: it moves heat away as you warm up and holds a thin layer of warmth as you cool down. It also resists odor in a way cotton and linen can't, which matters when one piece does a lot of wearing.
It is not for the hottest part of the day — at noon in direct sun you want linen against your skin, not wool. Merino's summer job is the cold restaurant, the evening that turns cool, the over-air-conditioned office, the flight. Our 100% Merino Wool 18-Gauge Base Sweater is the single layer that handles every cool moment of a warm season. (We made the full case for merino in summer separately if the idea still sounds strange.)
Merino owns: the temperature swing — cool evenings, cold rooms, flights — never the peak heat.
The temperature map
Put simply, read the day and pick the fiber:
- Hot and still (30°C+): linen. Maximum air, dry hand, accept the crease. - Warm and ordinary (the wide middle): cotton. Soft, versatile, sharp when you need it. - Cool moments inside a warm season (AC, evenings, flights): merino. One light layer, in and out of the cold.
A complete summer wardrobe isn't one of these three. It's all of them, each doing the job it's built for — which is the whole logic behind our twelve-piece summer capsule: a few linen pieces, a few cotton pieces, one merino layer, nothing redundant.
What about blends?
Most summer clothing isn't one pure fiber. It's a blend, and a good blend borrows the strength of more than one. A linen-cotton tee keeps most of linen's breath while gaining cotton's softness and crease resistance. A linen-viscose polo drapes better than pure linen and wrinkles less. The blend is a way to tune a fabric toward the job, not a way to cut corners — as long as the maker is honest about the percentages.
That last part is the catch. A piece labeled "linen blend" might be mostly linen or mostly something else, and the two behave nothing alike. We wrote a full breakdown of what 22%, 52%, and 100% linen each actually do so you can read a label and know what you're getting. The short rule for summer: the higher the natural-fiber content, the more breathable the piece, and the more it behaves like the pure fiber it leans on.
Our take
If we had to rank them by how much summer they cover, cotton is the widest, linen is the most specialized and the most rewarding on the right day, and merino is the smallest job but the one nothing else can do. Most men under-own linen (afraid of the wrinkle) and skip merino entirely (assume it's a winter fiber). Fix both and your summer gets noticeably easier: one linen piece for the heat, the cotton you already trust for the middle, one merino layer for the cold edges of a warm season.
Where ours are made
Made in the Pearl River Delta, in workshops that produce for European fashion houses. We work in all three fibers because no single one covers a whole summer. Match the fiber to the day, not the day to the fiber — that's the only rule that matters.