COS Flannel Shirts Resale Value

COS flannel shirts: 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 flannel shirt, whatever the label

Flannel is judged on the weight of the cloth and whether it has been washed to death, since thin flannel has little value.

• Heavyweight brushed cotton with real substance
• Recognised outdoor and workwear labels
• Genuine vintage with period construction
• Intact collar points and cuffs

And what pulls one down

• Thin, over-washed cloth that has lost its nap
• Fraying at the collar and cuffs
• Missing or replaced buttons
• Lightweight fast-fashion flannel

Working out what yours is worth

1. Feel the weight and check the nap is still raised
2. Inspect the collar points and elbows
3. Check the label for maker and origin

What to state in the listing

• Brand, size, and pit-to-pit and length laid flat
• Fabric composition and weight
• Pattern name and colours
• Condition of elbows, collar and cuffs, and whether all buttons are present

Brand, pattern and size: “Pendleton Wool Flannel Shirt, Red Buffalo Check, Size L”. Name the check pattern — buffalo, tartan, plaid are searched by name. Heavyweight and wool flannels are worth considerably more than thin brushed cotton.

Preparing and photographing it

1. Hold it to the light and check the elbows and collar points for thinning.
2. Check every button and look for a spare on the placket.
3. Note the fabric weight and whether it is brushed cotton or a synthetic blend.

1. Laid flat, front, buttoned, pattern clearly visible
2. The neck tag with brand and size
3. The elbows and collar points against light
4. Any missing button, fray or stain

When it sells best, and handing it over

Autumn and winter, strongest September to December. Heavyweight and wool flannels sell year round to a dedicated audience.

Light and cheap to post, folds flat.

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 flannel shirt worth?

Roughly £8 to £30 depending on condition, against £8 to £30 for flannel shirts 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 £19 for a COS flannel shirt, 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 flannel shirt for the title, handover and timing, or the general flannel shirt value guide if yours is not a COS.

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