The instinct when a jacket that retailed for several thousand dollars appears at fifty-eight is to look for the damage. Sometimes there is damage. But the more common explanation is duller and more useful: the depth of a discount tracks how many people can realistically wear the specific garment in front of you, and for most secondhand tailoring that number is very small.
A size 42 Long in a grey pinstripe has to find a buyer with a 42 Long chest who also wants grey pinstripe. Change the colour to navy and the pool widens. Change the size to 40 Regular and it widens again. Retail prices are set against a national market with a full size run and a marketing budget; a resale price is set against whoever happens to be searching that week. The gap between those two numbers is mostly a gap between two different sized audiences, and it has nothing to do with fibre quality.
This is why the discount is not uniform across a group of listings. The Jil Sander coat below carries the highest asking price in this set despite being far from the highest retail, because outerwear in a womenswear size runs to a wider pool than a men's suit jacket does. Read the discount as a demand signal and it starts telling you something. Read it as a condition signal and it will mislead you most of the time.
1
Brioni
Brioni Sport Coat Men 42 Long Gray Blazer Wool Super 150s Pinstripe Jacket Lined
$58
vs $4,850 retail
99% below
A grey pinstripe in Super 150s wool, sold as a sport coat, is almost always a suit jacket that has lost its trousers. Orphaned halves clear at blazer money because that is the only way anyone will buy them, which is how a Roman house that sells nothing cheaply ends up here at $58. Pinstripe reads as business dress and will not pass as a odd jacket with chinos, so buy this only if you want it for what it is.
2
Vince
Vince Black Long Sleeve V-Neck Knit Midi Dress Fit and Flare Size L
$99
vs $395 retail
75% below
Worth reading the retail figure sceptically on this one. Vince sits in the contemporary tier, where full price is a starting position rather than a number many people pay, so the honest comparison is against the season-end markdown and the real gap is narrower than $395 to $99 suggests. It is still a reasonable price for a black long-sleeve knit dress in a size L, which is one of the few places in this list where the buyer pool is genuinely large.
3
Jil Sander
Jil Sander Pale Pink Virgin Wool Button-Front Coat - FR 38
$379
vs $2,700 retail
86% below
Note that this is the most expensive item here and nowhere near the most expensive at retail. Jil Sander holds its secondhand floor better than almost anything else in this set, because the design language is legible enough that buyers seek the label out by name rather than stumbling on it. Pale pink narrows the audience considerably against a black or camel version of the same coat, and pale wool shows collar and cuff soiling, so ask for daylight photographs of both.
4
Isaia
Isaia Super 130's Blazer (42) Blue Striped Notch-Lapel Pockets 2-Button Wool
$100
vs $2,895 retail
97% below
Fit is the thing to get right before the price becomes interesting. Isaia cuts in the Neapolitan manner, which generally means a higher armhole, a softer shoulder and a shorter body than an American 42, so the tagged size tells you less than the flat measurements do. That soft shoulder is also the expensive part to alter, so a jacket that is wrong across the chest or through the shoulder is not worth the tailor's bill at any purchase price.
5
Polo Ralph Lauren
Polo Ralph Lauren Washable Cashmere Sweater Mens XL Gray Raglan Crewneck
$62
vs $348 retail
82% below
Machine-washable cashmere is treated so the scales on the fibre cannot felt, which is a genuine convenience and also the reason these knits tend to feel a little flatter than untreated yarn. Grey, XL, raglan crewneck is about as broad as menswear gets, so the low asking price here is doing something different from the tailoring above: this is volume, not scarcity. On any used cashmere, the elbows and the inside of the cuffs are where thinning appears first.
6
Isaia
ISAIA men's sport jacket - beige / brown check plaid - EU 56R / US 44R
$100
vs $2,995 retail
97% below
Unlike the pinstripe further up, a beige and brown check is a real odd jacket, made to be worn without matching trousers. Bold patterns still price low secondhand for the obvious reason: a loud check is a jacket you wear occasionally, while a plain navy one is a jacket you wear weekly, and the resale market pays for frequency. At a 44R the pool is decent, so the discount here is the pattern talking rather than the size.
The practical move is to stop treating a steep discount as a warning and start treating it as a description of the buyer pool. Ask who else wants this exact size in this exact colour, and if the honest answer is almost nobody, that is your explanation. Then spend your attention where it belongs: sleeve and shoulder measurements against a jacket you already own, and close photographs of elbows, cuffs and underarms.
