What to look for in a blazer fabric
A blazer needs to hold its shape across the shoulders and chest, drape cleanly, and stay comfortable through a day of sitting, standing and moving. The main factors are fibre, weave, weight and how formal the look should be. Fabric weight is often given in grams per square metre or ounces per yard, with lighter cloths being cooler and heavier ones warmer.
Worsted wool
Worsted wool, made from combed, smoothly spun yarn, is widely considered the most versatile blazer fabric. It has a smooth surface, resists creasing reasonably well and can be worn across much of the year in a mid weight. It is also what many suits are made from; see our article on types of wool fabric for suits for more.
Hopsack
Hopsack is an open, basket-like weave, usually in wool, that has a slightly textured look. It breathes well and creases less easily than some cloths, making it popular for casual and smart-casual blazers.
Flannel and tweed
Flannel is a soft, lightly brushed wool, and tweed is a thicker, rougher wool cloth. Both are warmer and more suited to autumn and winter, with a more casual, textured appearance.
Cotton and brushed cotton
Cotton blazers are lighter and more relaxed. They are breathable but crease more easily than wool and tend to look less formal. Brushed cotton, or a cotton twill, gives a softer, warmer surface that works for cooler months.
Linen and linen blends
Linen is airy and cool, so it suits hot weather (see linen fabric for hot weather). It wrinkles quickly, and many people embrace that casual look. Linen blended with cotton or wool reduces creasing somewhat.
Polyester and blends
Polyester and wool-polyester blends are common at lower prices. They resist wrinkles and are easy to maintain, but they can feel warmer and less breathable than natural fibres, and the finish can look shiny. A well-made blend can be a reasonable choice, especially for occasional wear, though 100% polyester blazers vary widely in quality.
Velvet
Velvet is used for evening and occasion blazers. It is a statement fabric, often made from cotton, silk, or polyester, and usually needs careful storage and cleaning.
Best fabric by season
| Season | Fabrics commonly used |
|---|---|
| Spring and summer | Linen, cotton, lightweight or high-twist wool |
| All-season | Worsted wool, hopsack |
| Autumn and winter | Flannel, tweed, brushed cotton |
| Evenings | Velvet, fine wool |
FAQ
Which fabric is good for blazers?
Wool, particularly worsted and hopsack, is the safest all-rounder. Cotton and linen suit warm climates, while flannel and tweed suit cold ones.
Are polyester blazers bad?
Not necessarily, but they tend to be less breathable than wool and may look and feel different over time. Check the lining, stitching and blend ratio as well.
What is the difference between a blazer and a suit jacket?
Suit jackets are cut from the same cloth as matching trousers, while blazers are meant to be worn separately, which is why blazers allow a wider range of fabrics. For more on suits, see wool vs cotton suits.