COS Blazers Resale Value

COS blazers: price by condition

Seller-declared grades, sterling with an approximate US dollar equivalent at £1 ≈ $1.33 (July 2026). What each grade means.

What holds its value across COS

• Oversized wool and wool-blend coats, which are the label’s signature and the thing buyers search it for by name
• Archive and limited-edition pieces, which are produced in small runs and are the only part of the range with a collectors’ element
• Plain, structured tailoring in neutral colours, which dates far more slowly than anything printed and stays saleable for years
• Heavier knitwear in merino and wool blends, which holds its shape where the cheaper high-street equivalents do not

What pulls COS resale value down

• Pilled knitwear, which is the commonest fault and shows immediately against the plain colours the label favours
• Faded blacks and washed-out greys, which are most of the range and where fading is most obvious
• Anything with a broken or replaced signature button or fastening, since the hardware is deliberately minimal and any substitute shows
• Basic jersey pieces, which are cheap enough new that a used one rarely justifies the postage on its own

Identifying and dating yours

1. The neck label reads COS rather than any sub-line, and the care label carries a product code buyers can search to confirm the season
2. COS sizing runs large and is cut deliberately oversized, so give flat measurements — buyers who have not worn the label before consistently order wrong
3. Photograph the shoulder seams and the inside of the coat, because the construction is most of why somebody chooses this label secondhand

What lifts any blazer, whatever the label

Blazers are judged on construction and shoulder fit, because those are the parts a buyer cannot alter cheaply.

• Canvassed or half-canvassed construction
• Natural fibre cloth with a good handle
• Clean shoulders with no divots or pressing marks
• Working buttonholes on higher-end tailoring

And what pulls one down

• Fused construction that has bubbled
• Shine on the elbows and seat of the sleeve
• Moth damage in wool
• Very dated lapel widths and shoulder shapes

Working out what yours is worth

1. Pinch the lapel to feel for a floating canvas layer
2. Hold it to the light checking for moth holes
3. Measure the shoulder width and chest

What to state in the listing

• Shoulder-to-shoulder, chest, sleeve and back length
• Fabric composition and whether it is fully or half lined
• Single or double breasted, and the number of buttons
• Whether it is part of a suit, and any wear at elbows or cuffs

Fabric, cut and size: “Wool Blend Single Breasted Blazer, Navy, Size 40R”. Include the shoulder measurement in the description — it is the one dimension a tailor cannot fix, so it decides whether the blazer is usable at all.

Preparing and photographing it

1. Measure shoulder to shoulder across the back, plus chest, sleeve and length.
2. Check the lining, the shoulder pads and whether the vents and pockets are still tacked shut.
3. Look for shine on the elbows and seat of the sleeves, which is where wool blazers wear.

1. Front on a hanger, buttoned, shoulders sitting properly
2. Flat with a tape across the shoulders
3. The inner label with composition, and the lining
4. Cuffs, elbows and any pull, shine or stain

When it sells best, and handing it over

Lifts in autumn and around interview and wedding season in spring. Classic navy and grey sell steadily; bold patterns move slowly.

Fold along the existing seams with the shoulders turned in, or post on a hanger in a garment bag if you can. A crumpled blazer arrives looking worthless.

What buyers ask

Does COS clothing hold its value?

Reasonably, and better than most of the high street, because the designs are plain enough not to date. Coats and tailoring do best; plain jersey basics are barely worth listing on their own.

What size should I list a COS coat as?

Give the label size and the flat measurements together. COS is cut oversized and the label size alone misleads more buyers on this brand than on almost any other.

How much is a COS blazer worth?

Roughly £15 to £70 depending on condition, against £15 to £70 for blazers generally. The identification points above are what move a listing to the top of that range.

What the fees would take elsewhere

At the mid-range £42 for a COS blazer, against what the commission marketplaces would deduct:

Seller-side rates verified 26 Jul 2026, percentages only — the per-order and processing charges those platforms add are excluded, so the real gap is wider.

Listing is free and there is no commission — read how to sell a blazer for the title, handover and timing, or the general blazer value guide if yours is not a COS.

See also: all COS value guides · value guides by brand · buying a blazer · Clothing · condition grades.