COS Midi Skirts Resale Value

COS midi skirts: 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 midi skirt, whatever the label

Midi lengths sell year-round, which makes them steadier than seasonal pieces, though supply is heavy.

• Structured fabrics that hold a shape
• Pleats that are still sharp
• Designer and contemporary labels
• Full linings in good condition

And what pulls one down

• Pleats that have dropped or lost definition
• Bobbling on knitted midi skirts
• Stretched waistbands
• Very trend-specific prints

Working out what yours is worth

1. Check pleats are still sharp and evenly spaced
2. Inspect the waistband for stretching
3. Measure the waist and full length

What to state in the listing

• Waist, hip and waist-to-hem length in centimetres
• Fabric composition and whether it is lined
• Cut: A-line, bias, pleated or straight
• Whether there is a slit, and the fastening type

Fabric, style and length: “Satin Bias Cut Midi Skirt, Sage, Size 10, 78cm”. Put the centimetre length in the title — on different heights a midi becomes a maxi or a knee-length, and that mismatch is the main reason these come back.

Preparing and photographing it

1. Measure the flat waist, hip and length from waistband to hem.
2. Check the zip, any slit, and whether the skirt is lined.
3. Look at the hem for wear and the fabric for pulls, especially on knits and satins.

1. Full length on a hanger or laid flat, front
2. A tape running waistband to hem
3. The fabric close up, showing texture and drape
4. The zip, lining and any snag or mark

When it sells best, and handing it over

Strongest spring through summer with a second lift before the party season. Satin and pleated styles sell fastest.

Light and cheap to post. Fold with tissue for satin and bias cuts, which crease sharply.

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 midi skirt worth?

Roughly £10 to £40 depending on condition, against £10 to £40 for midi skirts 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 £25 for a COS midi skirt, 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 midi skirt for the title, handover and timing, or the general midi skirt value guide if yours is not a COS.

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