This post may contain affiliate links. If you make a purchase through these links, I may earn a commission at no additional cost to you. Learn more about our affiliate policy.
Somewhere near you, right now, there’s a row of secondhand black blazers priced like nobody wants them. That’s the whole opportunity.
A black blazer goes casual the second you put denim under it, which is why it anchors so many casual blazer outfits and belongs in the old money wardrobe as much as any camel coat.
It also crosses straight into dark academia outfits, where the tweed version lives. One catch: black shows cheap fabric faster than any other color. Polyester goes shiny, acrylic pills, and both start to look like a uniform.
So these seven outfits do two jobs. You get one black blazer worn casually all fall, plus the tells that separate the ten dollar wool one from the ten dollar polyester one. (The best tell is in outfit five, and it costs fifteen dollars to act on.)
White tee, mid blue jeans, brown loafers
Start here, because it’s the one you’ll wear on repeat. A black wool blazer with a notched lapel, a heavyweight white cotton tee, mid blue straight leg jeans (no rips for this one), brown penny loafers, no socks.
The brown shoe is what makes it. With black shoes, a black blazer looks like you came straight from work. With brown loafers it looks like a jacket you’ve had forever, which is the whole idea.
The tell: fabric first. Wool that’s been worn for years fades slightly rusty or green at the shoulders and collar, and that’s a good sign, since polyester stays flat and a little shiny. You can spot it in daylight or in clear listing photos. Check the tag for wool content too. A blend is fine for the price, it just won’t hang quite the same. The faded all-wool one for ten dollars is the find, and I’m happy for you.
Shop the Look
Grey sweatshirt, cream wide legs, white sneakers
A trim grey marl sweatshirt under the blazer, cuffs pushed back so a little blazer sleeve shows, cream wool wide leg trousers, white leather sneakers. The trousers carry the volume, so the top stays close to the body.
Cream trousers in fall are one of the quietest old money moves there is, and they stay cheap because everyone files them under summer. If you already own navy wide leg trousers, they do the same job.
The tell: look at men’s sportcoats first. Hear me out:
- The fit. A men’s 36 or 38 short fits a lot of women who wear a small or medium, and the shoulder is cut generously. Online, compare the shoulder measurement to a jacket you already own.
- The fabric. It’s usually heavier than the poly crepe that flooded women’s blazers in the 2000s.
- The sleeves. Shortening a sleeve runs about twenty dollars, unless the cuff has working buttonholes. Then it’s a lot more, so check the cuff, or ask for a photo of it.
Shop the Look
Camel turtleneck, dark indigo jeans, cognac loafers
A fine gauge camel turtleneck in cashmere or merino, tucked into dark indigo straight leg jeans, cognac loafers, cream ribbed socks showing above them.
Camel against black is the old money palette at its purest, and the warm neutral keeps a black blazer from looking severe in daylight. Keep the knit thin, since anything chunky bunches at the shoulder under a blazer. My favorite thing to hunt here is eighties fine gauge cashmere. It rarely carries a label anyone recognizes, so it sells for coffee money.
The tell: the shoulder seam should end at your shoulder bone, so measure a jacket that fits you and compare it to the listing’s shoulder measurement. Then the pad. Pinch the top of the shoulder if you can, or ask the seller. A pad tacked in along one line can be thinned or removed cheaply. A pad built into the construction can’t, so I’d leave that one.
Shop the Look
Ivory silk shell, olive chinos, tan suede loafers
An ivory silk shell with a high neck under the blazer, olive cotton chinos rolled once, a brown leather belt, tan suede loafers.
This is the warm October outfit, and it runs on the same rule as every summer to fall transition outfit: the blazer comes off at noon and nothing underneath looks unfinished. Silk is what makes that true. It warms to your hand and feels slightly grippy, where polyester stays cool and slides. From photos, the tag does the job.
The tell: read the lining label, or ask for a photo of it.
- Cupro or Bemberg. Someone spent money where nobody would see it. Great sign.
- Acetate. Perfectly fine.
- Half lined or unlined. The best early fall find of all, and it gets passed over because it looks unfinished on a hanger.
Shop the Look
Grey merino crewneck, green corduroys, tartan scarf
A heathered grey merino crewneck, forest green corduroy trousers, brown suede loafers, and a dark green and navy tartan wool scarf looped once if the morning is cold.
The reference here is a certain kind of person walking a dog in the country, and I fully support it. Fine wale corduroy dresses up under a blazer. Wide wale feels more seventies and casual. Both work, they’re just different outfits.
The tell: the buttons, and this is the one I promised you. Cheap blazers get flat, perfectly uniform plastic. Good ones get horn, with an irregular grain you can see against the light or in a close-up photo, or corozo with a tiny mottled pattern. A wool blazer with a good lining and plastic buttons is still a buy. Swap them. Six horn buttons cost about fifteen dollars, and it’s one of the best returns on any alteration.
Shop the Look
Light blue oxford, black jeans, gold hoops
A light blue oxford cloth shirt with the collar open and sleeves rolled to just below the blazer cuff, black straight leg jeans, white leather sneakers, small gold hoops.
Worried the two blacks won’t match? They won’t, and that’s what makes it work. Wool ages slightly warm, cotton ages slightly grey, and together they look like two pieces you happened to own. Perfectly matched black looks like a set you bought on the same day.
The tell: real oxford cloth has a visible basketweave, heavier than poplin and softer with every wash, and it shows up clearly in a close-up photo. Men’s shirts are again the fastest route. A men’s small worn a little big looks more old money than a fitted women’s blouse in the same color.
Shop the Look
Navy knit dress, slim belt, dark brown loafers
A navy fine knit midi dress with long sleeves, a slim brown leather belt at the waist, the blazer worn open over it, dark brown loafers.
This is the three errands and no time outfit. The dress is the whole look, the blazer is the coat, and the belt keeps it from looking like a nightgown. Navy with black is the pairing we were all warned off and old money never stopped wearing. In heavy matte fabrics it looks completely deliberate.
The tell: the vent, which you can see in any photo of the back.
- Single center vent. The boxier American cut.
- Double side vents. The British cut. They sit better over a hip and move when you sit, so they’re the ones to hunt for casual outfits. One more point for men’s sportcoats, where they’re easier to find.
- No vent. Stiffer, and very common on nineties women’s blazers.
Shop the Look
One blazer, seven Looks
Same jacket in every outfit above. That’s the argument for finding the right one.
Seven tells, about two minutes, no brand names required:
- Daylight, or good photos, for the fade
- Men’s sportcoats for fabric weight
- The shoulder seam and pad
- The lining label
- The buttons
- The fiber of whatever goes under it
- The vent
If you already own a black blazer, put it on with the white tee and mid blue jeans this week and run it down the list. If it passes, you have six more outfits before Thanksgiving, and the rest of the old money guides pick up from there.
