The sculpted blazer is the season's clearest answer to the return of power tailoring. Strong shoulders are back because a blazer can make ordinary clothes look considered in under a minute, and because the right cut gives jeans, a skirt or a plain shirt a little authority. I do not mean the stiff, costume-like kind that makes sitting down an event. My rule is to look for a shoulder with structure, a waist that is shaped without being pinched and a lapel that still lies flat when the jacket is buttoned. Wool is the first fabric I would consider, with cashmere for softness and leather, velvet or satin for the occasions when a blazer has to replace a dress. Check the sleeve length and the position of the top button. If either is wrong, shoulder padding cannot save the fit. Choose the cloth and construction for how often you expect to wear the jacket, then insist on an exact fit. Below, the blazers that make strong shoulders feel wearable rather than theatrical.

The first blazers in the grid below are where I would start if you want the sculpted shape before the label. Ronny Kobo's Carrie and Nadine Merabi's Beatrice put the strong shoulder in red, while L'Academie's Emmy, Line & Dot's Ida and Rue Sophie's Trenton pull in hard at the waist. Theory's Etiennette is 96% wool with a little stretch for the commute, SAU LEE's Indya stops right at the waist, and Nonchalant Label's Jannette comes belted. These are the ones I would try on with the jeans and plain knits I already own, because the cut does the work.

Saint Laurent remains the reference for a blazer that understands the power of a clean line. The cuts are designed to be worn rather than merely photographed. The Wool double-breasted blazer is the first one I would try, while the Grain de poudre wool and silk-satin blazer brings a subtle evening finish. The Double-breasted cashmere-twill blazer has the softest authority, and the Wool-blend bouclé blazer is the texture-led option. If you prefer restraint, the Wool and silk-blend blazer is the quiet choice. Saint Laurent does the shoulder without making the rest of the outfit feel like an audition.

The single-breasted blazer is for anyone who wants the architecture of tailoring without a loud fashion signal. Victoria Beckham's Katherine twill blazer is a useful starting point, with enough shape to work over a T-shirt, and McQueen's wool blazer is the clean staple. Loewe's wool-blend twill blazer gives a little more direction without turning into a costume. Destree's tamara crepe blazer has a softer, drapier front, and the Vivienne Westwood Bergere cotton and wool-blend blazer is a gentler proposition for days when a hard shoulder feels too formal. The Shopbop additions, from TWP's Double Take to the rag & bone Mercer Regalia, keep the same clean shoulder in a more relaxed cloth. Look for a lining that lets the jacket move, not just a sharp front view.

Double-breasted jackets are the useful experiment in this trend because the overlap of the front makes the shoulder and waist look deliberate. Nili Lotan's Weston double-breasted wool-gabardine blazer has the most practical balance, while Balenciaga's Hourglass double-breasted cashmere blazer makes the waist and shoulder equally sharp. Ralph Lauren Collection's Ramona double-breasted windowpane blazer is the patterned choice, and Gabriela Hearst's Angela wool double-breasted blazer keeps things more measured. The L'AGENCE Kyomi and the Tom Ford silk twill version show how far the shape stretches from daytime to evening. A full-length blazer should skim the hip, not stop at its widest point.

Leather, velvet and satin make the blazer an evening piece, but the best versions still behave like tailoring. The L'AGENCE Philippa velvet tux blazer is the straightforward choice, and Etro's velvet blazer is the softer one. The Emporio Armani Enver satin blazer is the lightest, brightest option, and Gucci's silk-faille blazer has enough sheen to replace a dinner jacket. The Gucci leather blazer is a long-term piece if you wear black trousers often, and Khaite's asymmetric paneled leather blazer is for someone who wants the cut to be noticed. For a lighter take, the Cinq à Sept faux leather zip blazer and the Susana Monaco boyfriend blazer bring the same edge. Keep the rest of the outfit quiet, because these fabrics do not need help making an entrance.

The shopping list catches the blazers that are too good to leave behind simply because they do not fit the main arguments. Kallmeyer's James wool-blend jersey blazer is the easy commuter, and Destree's Amoako devoré blazer has a real evening use. The Row's Obine crepe blazer is polished without being severe, while the BLAZÉ Milano checked wool blazer has the pattern I would wear most often. Gucci's double-breasted pinstriped wool-twill blazer is the classic with a little extra authority. These are the jackets to keep near the front of the wardrobe, where they can rescue an otherwise unplanned outfit.

The shoulder is the first fitting point, but the back is where a blazer proves itself. I lift my arms, sit down and check that the fabric does not pull across the shoulder blades. If it does, sizing up and altering the waist is usually better than forcing a smaller size to behave. Wool jackets can be brushed and aired between wears, and satin deserves a proper hanger rather than a wire one that marks the shoulder. Store velvet with enough room for the pile to stay upright. I would rather own two excellent blazers that fit than five almost-right ones, because the almost-right jacket is the one that never leaves the wardrobe.

Phoebe