To grade a used wool suit lining, check four things in order: lining fabric and seams, vent splits, shoulder pad condition, and odor. Then let the weakest finding cap the grade. A clean shell with a shredded lining is not an Excellent suit.
Here is the scenario. You list a charcoal wool suit as Excellent. The shell is spotless. The buyer opens the jacket, puts a hand in, and the lining tears at the underarm. Or the center vent is split six inches and you never photographed it. That is a not-as-described return on a suit you thought was clean. Buyers open the jacket first. Sellers often skip the interior. This guide fixes that.
Why the Lining Decides the Tier on a Suit
Wool shells are forgiving. They brush, steam, and press back to life. Linings are not. Most are acetate, rayon, or polyester, and they take the friction: underarms, sleeve channels, the seat of the trousers if half-lined, and the vents. Lining failure is also expensive to fix, because a reline is a tailor job.
On our 1.0–10.0 scale, the lining touches all five factors:
- Fabric Condition: shattering, thinning, stains, or holes in the lining and the pad cover.
- Structural Integrity: open seams, vent splits, pad shift, and a lining that has pulled away from the shell.
- Cosmetic Appearance: sweat discoloration, pulls, and snags that do not affect strength.
- Functional Elements: interior pockets, buttons, and the vent hanging flat when worn.
- Odor & Cleanliness: trapped sweat, cedar, smoke, or dry-cleaning chemicals.
A suit can have a Very Good shell and a Fair interior. The grade follows the weaker half, because that is what the buyer will find.
Step-by-Step: The Lining Check
Run these in order, under bright, even light. Do it before you photograph, not after.
- Turn the jacket inside out or open it flat and look at the full lining before touching it. Note stains, color shifts, and any panel that does not match the others, which signals a past reline.
- Press the underarm lining with your fingertips. Sound lining feels smooth and springy. Shattered lining feels crisp and may crackle or split along the weave.
- Pinch the lining at the sleeve head and pull gently across the grain. If it opens or the yarns part, the fabric has failed.
- Trace every lining seam with your thumb, especially the side seams, armhole, and the seam that joins lining to the shell facing. Look for open stitches or puckering.
- Check the sleeve lining by reaching a hand into each sleeve. Snags and tears hide here, and sleeves wear from the wrist up.
- Test each interior pocket: bottom stitching, pocket edge, and the welt. Inner pockets split at the corners first.
- Smell the lining closest to the collar and underarms. Odor concentrates where sweat lived.
Write down what you find as you go. Each note becomes a photo, a line in the listing, and an input to the grade.
Seam Wear: Cosmetic Fraying or Structural Failure
Seam wear is where sellers over-grade most often. The question is whether the seam is still holding the lining to the garment.
A seam that shows a few loose thread ends but stays closed is Cosmetic Appearance. A seam that has opened, even a half-inch, is Structural Integrity. Do the pull test: grip both sides of the seam and tug gently. If it holds without gapping, note it. If stitches pop or the fabric frays out of the seam allowance, it is open and it will keep opening.
Underarm lining is the highest-risk spot. Check where the sleeve lining meets the armhole. Strain from lifting arms pulls here, and a split can run several inches. A single small underarm tear caps most suits at Good. A tear plus open side seams moves it toward Fair.
Vent Splits: Reading the Back of the Jacket
Vent split wear assessment starts with knowing the vent type. A center vent is one slit. Side vents are two. A ventless jacket has none. Each fails differently.
Center vents fail at the top. The seat strain pulls the stitching at the vent apex, and the lining there can tear or the fabric can split. Side vents tend to pucker and curl if the lining shrank or was pressed badly.
Check three things:
- The apex stitching. Is there a clean bar tack or reinforcement, or has the thread pulled out?
- The vent hang. Lay the jacket on a table. A good vent lies flat. A vent that gaps or overlaps unevenly has structural stress, or the lining has shrunk.
- The lining edge at the vent. Look for fraying, shiny wear, or a tear starting at the corner.
A closed, flat vent with intact stitching is no deduction. A pulled bar tack with sound fabric is a repairable defect, and you should disclose it. A true split through the shell or lining at the vent is a Structural Integrity failure and usually lands the jacket in Good or Fair.
Shoulder Pad Condition: What You Can and Cannot See
Shoulder pad condition on suit resale is a quiet value driver. Pads give a suit its line. When they collapse, the shoulder looks hollow or lumpy, and buyers return for it.
You cannot see the pad directly, so read the outside and feel the inside:
- Silhouette. Hang the jacket on a wide hanger. Both shoulders should match in height and shape.
- Press test. Press the shoulder from outside. Firm and even is good. Crumbly, dented, or shifted padding is a problem.
- Lift the lining at the shoulder. If the pad cover is exposed, check for foam crumbling, which leaves a dusty residue, or fabric pilling inside.
- Look for ridges. A visible pad outline through the shell means the pad has slid or twisted.
Vintage suits matter most here. Older pads in foam or cotton wadding break down. A shifted pad is fixable and mild. Crumbling foam or a collapsed shoulder is Structural Integrity damage, and it drops the tier.
Putting the Findings Into a Tier
This is a working guide to a suit condition grading guide, not a formula. The principle is that the weakest verified finding caps the tier. Use this as a starting point for a vintage suit condition tier:
| Interior finding | Typical factor hit | Likely tier ceiling |
|---|---|---|
| Clean lining, flat vents, firm even pads, no odor | None | Excellent |
| Minor snag or light sweat shadow, seams closed | Cosmetic Appearance | Very Good |
| Small underarm tear or pulled vent bar tack, repairable | Structural Integrity | Good |
| Open seams, shattered lining, or crumbling pads | Fabric Condition and Structural Integrity | Fair |
| Multiple failures, strong odor, split vent through shell | Several factors | Poor |
Treat these as ceilings, not guarantees. A great shell does not lift a failing interior, and a weak shell does not get rescued by a perfect lining. NWT and NWOT suits should show a pristine interior with original stitching, tags or evidence of no wear.
Photograph What You Found
Disclosure protects you. On eBay, the return window and the not-as-described claim reward the buyer who can point to a missed defect. A few shots head that off:
- The open jacket showing full lining.
- The underarm lining, close up, on both sides.
- The vent from behind, laid flat, and a close shot of the apex.
- The shoulder line on a hanger, front and back.
- Any defect, with a coin or ruler for scale.
Then say it plainly in the description: "Lining shows a one-inch open seam at the left underarm. Vent lies flat, shoulder pads firm." Specific beats adjectives every time.
Grade One Suit and See the Report
Pick one suit from your inventory and run the seven-step lining check before you list it. Then grade it in GradeThread to see how Fabric Condition, Structural Integrity, Cosmetic Appearance, Functional Elements, and Odor & Cleanliness land on the 1.0–10.0 scale. You get a detailed report and a certificate buyers can verify. Compare it with the tier you would have guessed.