COS Mom Jeans Resale Value

COS mom jeans: 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 mom jeans, whatever the label

High-rise vintage-cut denim came back strongly, and genuine period pairs sell well above modern reproductions.

• Genuine vintage with period rivets and tags
• Rigid, non-stretch denim
• Natural fading from real wear
• Recognised denim labels and made-in markings

And what pulls one down

• Modern reproductions sold as vintage
• Stretch blends, which are far less sought after
• Hem alterations that shorten the leg
• Repairs at the crotch and inner thigh

Working out what yours is worth

1. Check the inner tag for era and country of manufacture
2. Feel whether the denim is rigid or has stretch
3. Measure the waist flat and the rise

What to state in the listing

• Flat waist doubled, rise, and inside leg
• Rigid denim or stretch, with the elastane percentage
• The wash, named rather than left to the photograph
• Any wear at the crotch seam or inner thigh

Brand, cut, size and rise: “Levi’s 501 Mom Jeans, W29, High Rise, Light Wash”. Wash matters a lot in this cut and photographs badly, so name it. State whether they are rigid or stretch — buyers of this style usually have a firm preference.

Preparing and photographing it

1. Measure the flat waist, the rise from crotch seam to waistband, and the inside leg.
2. Check the crotch seam and inner thigh for wear, which is where mom jeans go first because of the fit.
3. Read the composition label; rigid all-cotton pairs sell differently from stretch ones.

1. Front, flat and smoothed, whole leg visible
2. Back, showing the seat and pocket placement
3. The waistband tag with brand and size
4. A tape across the flat waist, plus any wear at the crotch or hem

When it sells best, and handing it over

Consistently in demand. Common sizes in recognised brands sell within a week or two, particularly in light and mid washes.

Straightforward and cheap to post. Roll rather than fold to keep the parcel small.

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 are COS mom jeans worth?

Roughly £12 to £50 depending on condition, against £12 to £50 for mom jeans 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 £31 for COS mom jeans, 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 mom jeans for the title, handover and timing, or the general mom jeans value guide if yours is not a COS.

See also: all COS value guides · value guides by brand · buying mom jeans · Clothing · condition grades.