Grading Wool Blazers, Fall 2026

November 7, 2026

A good wool blazer is half-canvassed or fully canvassed, lined in a breathable fabric, and cut from wool that holds its shape: 120s to 150s wool for a dress blazer, or a hardier worsted for daily wear. A fused blazer, where the front is glued rather than stitched, bubbles after dry cleaning and deserves a C. The grades below score construction first, because construction is what you feel after a year.

How the grades work

A blazer is graded on construction first, fabric second, and details third, because construction is what you feel after a year and fabric is what you feel on day one. The construction question is simple: is the front canvassed, half-canvassed, or fused? A canvassed blazer has a layer of canvas stitched between the wool and the lining, and it molds to your body over time. A fused blazer has its front glued, and the glue bubbles after dry cleaning. That one difference is worth two grades on its own.

The fabric question is the wool: 120s to 150s for a dress blazer, a hardier worsted for daily wear, and no super number above 180s unless you accept that it will wear out faster. The details are the lining, the buttons, and the buttonholes: a breathable lining, horn or corozo buttons, and a working buttonhole on the lapel are the marks of a maker that cares. A polyester lining, plastic buttons, and a fake lapel buttonhole are the marks of one that does not.

Grade A: fully canvassed, honest wool

The A blazer is fully canvassed, cut from 120s to 150s wool, lined in a breathable fabric like bemberg or cotton, and finished with horn buttons and a working lapel buttonhole. It molds to the body over months, it survives dry cleaning without bubbling, and it looks better in year three than it did in year one, because the canvas has settled to the wearer. It costs more, usually several hundred dollars, and it earns it back in wear count: a $500 blazer worn a hundred times costs $5 a wear, and a $150 blazer worn ten times costs $15.

The test in the shop is the pinch test. Pinch the fabric at the chest, just below the lapel, and roll it between your fingers. On a canvassed blazer you can feel the layers separate slightly, like pages in a book. On a fused blazer the front feels like one flat, glued layer. If the layers do not separate, it is not an A, no matter what the label says.

Grade B: half-canvassed, the sweet spot

The B blazer is half-canvassed: the canvas runs through the chest and lapels, where structure matters, and the rest of the front is fused to keep the price down. It is the sweet spot for most buyers, because it gives you the drape and the lapel roll of a canvassed blazer at roughly half the price. It survives dry cleaning far better than a fused blazer, because the parts that show are stitched, not glued, and the parts that are fused are the parts that do not bubble visibly.

The difference from an A is durability and drape over years, not weeks. A half-canvassed blazer will not mold to the body the way a fully canvassed one does, and after five years the fused lower half may start to show its age. For a blazer worn once or twice a week, that is a fair trade. For a blazer worn every day, pay for the A.

Grade C: fused, and why it fails

The C blazer is fully fused, and it fails on the one test that matters: dry cleaning. The glue that holds the front together softens under heat, and after a few cleanings the front bubbles and ripples, and once it bubbles it cannot be fixed. The blazer also feels flat and papery from day one, because there is no canvas giving the lapel its roll and the chest its shape. A fused blazer can look good on the hanger, and it can look good in a photograph, and it will not look good in year two.

That does not make every fused blazer a bad buy. A $100 fused blazer worn ten times for a season is a fair purchase, if you know what you are buying. The problem is the $300 fused blazer sold as if it were canvassed, which is the most common grading failure in the shops. Pinch the chest, check the lining, and if the front feels like one glued layer, pay the fused price or walk away.

Keep reading: Grading Wool Coats for Fall 2026: Weight and Lining Beat the Label, Grading Linen Blazers for Fall 2026, and Grading Wool Cardigans for Fall 2026: Buttons and Buttonholes Tell the Truth.

Frequently asked questions

How can I tell if a blazer is canvassed or fused?

Look inside the front panel. A canvassed blazer has a layer of horsehair or cotton canvas stitched between the wool and the lining, and you can feel it as a separate, slightly stiff layer. A fused blazer feels like one flat, glued layer, and the front is smooth and papery. Pinch the fabric at the chest: if the layers separate slightly, it is canvassed.

Is half-canvassed good enough?

Half-canvassed is the sweet spot for most buyers. The canvas runs through the chest and lapels, where structure matters, and the rest is fused to keep the price down. Fully canvassed is the best construction and the most expensive. Fully fused is the cheapest and the one that bubbles after dry cleaning.

Does dry cleaning really ruin a fused blazer?

Yes, and it is the most common way a cheap blazer fails. Fusing glue softens and bubbles under dry cleaning heat, and once it bubbles it cannot be fixed. A fused blazer that is never dry cleaned lasts longer, but a blazer that cannot be cleaned is not a blazer you can wear often.

What wool should a blazer be made from?

For a dress blazer, 120s to 150s wool, which is fine, smooth, and drapes well. For a daily blazer, a hardier worsted in a lower super number, which resists wrinkling and wear. Higher is not always better: a 180s wool feels luxurious and wears out faster, because the fibers are finer and more fragile.