COS Waistcoats Resale Value

COS waistcoats: 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 waistcoat, whatever the label

Waistcoats sell mostly as part of formalwear, so whether it matches a suit is the main question buyers have.

• Matching suit waistcoats sold with the suit
• Quality cloth with an intact silk or viscose back
• Working adjuster buckle at the rear
• Recognised tailoring labels

And what pulls one down

• Missing or broken rear adjusters
• Snags and pulls on the silk back
• Stains on the front panels
• Very dated cuts and lapel styles

Working out what yours is worth

1. Check the rear adjuster works through its range
2. Inspect the silk back for pulls
3. Measure the chest and length

What to state in the listing

• Chest size in inches, and length from shoulder
• Fabric composition, and whether the back is satin or matching cloth
• Number of buttons and pockets, and whether there is a back adjuster
• Any missing button, stain or lining damage

Style, material and size: “Tweed Waistcoat, Size 40in Chest” or “Three Piece Suit Waistcoat, Navy, Medium”. Chest size in inches is the search for formalwear. Say if it is part of a suit and whether the matching jacket and trousers are available.

Preparing and photographing it

1. Check the back adjuster buckle and strap, which is where waistcoats wear and where they are easily damaged.
2. Inspect the lining, particularly under the arms and along the back panel.
3. Press it properly. A waistcoat photographs badly creased and takes minutes to steam.

1. The waistcoat flat or on a hanger, front, whole
2. The back, showing the adjuster strap and buckle
3. The lining and inner pockets
4. The label with size and composition, plus any stain, hole or worn buttonhole

When it sells best, and handing it over

Lifts before wedding season in spring and around Christmas party season. Tweed and vintage styles sell steadily to a separate audience year round.

Light and cheap to post. Fold along existing seams with tissue at the fold, and post flat rather than rolled so it arrives ready to wear.

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 waistcoat worth?

Roughly £10 to £45 depending on condition, against £10 to £45 for waistcoats 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 £27 for a COS waistcoat, 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 waistcoat for the title, handover and timing, or the general waistcoat value guide if yours is not a COS.

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