High-Twist Wool and Fresco: The Travel Suit Fabric

High-twist wool is the fabric tailors reach for when a client says a suit must survive a long-haul flight, a humid city and a full day of meetings. From a few feet away it looks like a normal worsted suit. Yet it breathes almost like linen and shrugs off creases that would ruin a smooth worsted. The secret is not a special fiber but the way the yarn is spun and woven. Once you understand that, you can pick the right weight, know what to expect from the hand and decide whether fresco, the most famous name in the category, is right for you.

What does high twist mean in wool?

Every yarn is held together by twist. When wool fibers are spun, they are wound around each other so friction locks them into a continuous thread. Standard worsted suiting yarn has enough twist to be strong and smooth. High-twist yarn is spun with much more. The fibers are wound tighter, and the yarn becomes denser, thinner for its weight and noticeably springy. Two or three of these yarns are then usually twisted together, or plied, in the opposite direction, which balances the yarn so it lies straight.

That springiness is the point. A tightly twisted yarn behaves a little like a coiled spring: bend it and it pushes back. Fabric woven from it wants to return to flat, which is why creases fall out. The extra twist needs long fibers that can take the strain, so high-twist fabrics are almost always worsted, made from combed wool, rather than woolen. Our guide to worsted vs woolen explains the difference.

How does an open weave keep you cool?

High-twist yarns are compact, so a fabric woven from them has small, regular gaps between the threads, even at a respectable weight. In a plain weave, the simplest over-one, under-one structure, those gaps line up into thousands of tiny windows. Air moves through them as you walk, carrying away heat and water vapor. Hold a swatch up to a window and you will see light through it. That is the quickest test of how cool a fabric will feel.

The fiber helps too. Wool absorbs water vapor into the fiber itself, so it feels dry for longer as you start to sweat, and the springy yarn holds the fabric slightly away from your skin instead of letting it cling. That combination is why high-twist wool copes with humidity better than most cotton and light linen. For the full ranking of warm-weather options, see the best suit fabric for hot weather.

Is high-twist wool wrinkle resistant?

Yes. High-twist wool is one of the most crease-resistant natural suit fabrics you can buy. After a three-hour flight you will see creases at the elbows and behind the knees, but most drop out within an hour of walking around or overnight on a hanger. A smooth, low-twist worsted of the same weight would hold them far longer, and linen would hold them all day.

Three things work together. The tightly twisted yarn stores energy and springs back. Plying balances the yarn so the fabric lies flat. And the wool fiber has a natural crimp that recovers from bending. High twist is not crease-proof, though. A hard crush in a tightly packed bag will still leave marks that need steam.

What is fresco fabric?

Fresco is the original high-twist suiting and still the best-known name. It was invented and registered in 1907 by Martin Sons & Co, a Huddersfield mill founded in 1859 by Patrick Martin, a designer who had come to Yorkshire from Belfast. Martin Sons later became part of Huddersfield Fine Worsteds, a group of old Yorkshire mills and merchants, which still makes Fresco and sells it under the Hardy Minnis name. Fresco is Italian for fresh, and the fabric is so well known that tailors often use the word loosely for any high-twist plain weave.

Genuine Fresco is defined by three things: wool fiber, worsted yarn given an extreme amount of twist, and a plain weave. It has been made in two-ply and three-ply versions over a wide range of weights. Like most suiting, it has become lighter over time. In 1950 it was woven at about 11 to 18 oz (341 to 558 g); recent ranges have run from about 9 oz (280 g) for a lightweight version to 14 to 15 oz (435 to 470 g) for three-ply.

Which high-twist fabrics will you find in a fabric book?

Fresco has plenty of company. Most English merchants and several mills offer their own high-twist bunches, and they differ in weight, ply and hand. These are some established names. Ranges change from season to season, so ask your tailor for the current book.

What weight of high-twist wool should you choose?

Weight decides the season. For true heat, choose about 8 to 9 oz (250 to 280 g). For a travel suit you will wear across climates, 9 to 10 oz (280 to 310 g) is the sweet spot: the open weave keeps it airy, and the extra weight helps it drape and resist creasing. Heavier three- and four-ply high-twists, from about 12 oz (370 g), are cool-weather fabrics that make hard-wearing suits and trousers with a sharp crease. Our guide to suit fabric weight explains ounces, grams and conversions.

Is high-twist wool good for hot weather?

It is one of the best suit fabrics for hot weather, and arguably the best for humid heat when you need to look like you are wearing a proper suit. Linen is cooler in dry heat but creases within the hour. A standard tropical worsted looks smoother and more formal, but it breathes less and creases more unless the yarn is high-twist. High-twist wool sits in between: nearly as airy as linen, nearly as smart as a worsted and better at recovering than either.

What does high-twist wool feel like?

Expect a dry, crisp, slightly grainy hand rather than the smooth, silky feel of a fine worsted. Some people find it scratchy at first, especially on the legs, and the original Fresco is among the drier examples. The surface is matte, and the fabric makes a faint crunch when you rub it between your fingers. Softer high-twists with a sleeker finish exist, and lining the trousers to the knee removes most of the scratch where it matters.

How should you wear high-twist wool?

High-twist wool is versatile. As a suit, it covers business days in heat and long travel days anywhere. As odd trousers, it is one of the most useful fabrics you can own: cool, tough and crease-resistant. Some bunches also include open mesh or hopsack-style jacketings, made for odd jackets with plenty of air flow.

• Business suit in heat: navy or mid-gray, 8 to 9.5 oz (250 to 295 g), half-lined.
• Travel suit: navy or charcoal, 9 to 10 oz (280 to 310 g), with a jacket that also works as a blazer.
• Odd trousers: mid-gray, tan or olive, 10 oz (310 g) or more, to wear with blazers and sport coats.
• Separates: a high-twist suit in mid-brown or olive breaks up well into a jacket and trousers.
• Summer weddings: light gray or tan for daytime, if you want to look crisp at the end of the evening.

What should you ask your tailor for?

Tailors tend to like high-twist wool. It presses crisply, holds the shape built into it and stands up to wear. A few construction choices make the most of it.

• Half lining or no lining. It keeps the jacket airy; see suit linings explained.
• Soft or light shoulders. Less padding means less heat.
• Canvas rather than heavy fusing. A floating canvas breathes with the fabric; see fused vs canvas.
• Well-finished seams. Open weaves can fray at raw edges, so an unlined jacket needs neat seam finishes inside.
• Trousers lined to the knee. The lining softens the hand against the leg and helps the trousers hang.

How do you care for a high-twist suit?

High-twist wool is the closest thing tailoring has to an all-terrain fabric. Start with navy or mid-gray at about 9 to 10 oz (280 to 310 g) and you have a suit for summer in the city and for long travel days. For more ways to stay comfortable, see how to stay cool in a suit, and compare every fiber in suit fabrics explained.

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