COS Suits Resale Value

COS suits: 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 suit, whatever the label

Suits sell modestly unless the cloth and construction are genuinely good, which most buyers can assess from a few details.

• Canvassed rather than fused construction
• Recognised cloth mills named on the label
• Generous inlay allowing future alteration
• Matching trousers with unworn seat and hems

And what pulls one down

• Fused construction that has bubbled at the lapel
• Shine on the seat and elbows from wear
• Moth damage, common on stored wool
• Very dated cuts and lapel widths

Working out what yours is worth

1. Pinch the lapel to feel whether there is a floating canvas layer
2. Hold it to the light to check for moth holes
3. Measure the chest, shoulder and inseam rather than trusting the label

What to state in the listing

• Jacket shoulders, chest, sleeve and length
• Trouser waist, inside leg and rise, and whether hemmed or with turn-up allowance
• Fabric composition and whether it is two or three piece
• Lining condition, and any alterations already made

Fabric, colour and both sizes: “Wool Two Piece Suit, Charcoal, Jacket 40R Trousers W34 L31”. Give both sizes in the title, because a suit that fits the chest but not the leg is no use. Say two-piece or three-piece explicitly.

Preparing and photographing it

1. Measure the jacket shoulders, chest and length, and the trouser waist, inside leg and rise.
2. Check whether the trousers have been taken up or let out, and whether there is turn-up allowance left.
3. Inspect the lining, the crotch seam and the seat, and have it dry-cleaned if it looks tired.

1. Jacket and trousers laid out together, front
2. The inner jacket label with composition and size
3. A tape across the trouser waist and the hem showing any alteration
4. The lining, plus any shine, pull or stain

When it sells best, and handing it over

Lifts around wedding season in spring and summer, interview periods in autumn, and before Christmas. Classic colours sell steadily; fashion cuts date quickly.

Post in a garment bag or fold carefully with tissue. Suits arrive looking cheap if crushed, and that undermines the price you agreed.

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 suit worth?

Roughly £30 to £150 depending on condition, against £30 to £150 for suits 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 £90 for a COS suit, 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 suit for the title, handover and timing, or the general suit value guide if yours is not a COS.

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