Denim has been getting louder for three years now, ever since volume returned to the leg and everyone had to decide where they stood on it. The barrel jean arrived first, curving out at the thigh and drawing back at the ankle, dividing wardrobes into believers and holdouts. This fall the silhouette has been sanded down into something far more wearable, and the fashion crowd has given it a name that explains itself on sight. Tulip jeans carry their volume high and round through the hip and thigh, then taper to a clean finish at the ankle, tracing the line of a bloom still holding itself closed. The effect reads as sculptural while staying clear of costume, which is why the style has traveled so quickly from runway to office.

Where the Shape Comes From

Katie Holmes

The lineage runs through Alaïa, whose catwalk did more than any other to establish the curved leg, giving it an outsized, rounded cut that reached Free People, Madewell and the rest of the high street within a season. Purists found that version a little avant-garde for daily life. The tulip interpretation keeps the curve and trims the excess, landing somewhere a boardroom can accommodate. Flowers have supplied fashion with proportions before. Christian Dior named his spring 1953 collection the Tulip line, building fullness across the bust and shoulders while drawing everything in below, working the same logic in the opposite direction.

Who’s Wearing Them, and With What

Halle Berry

Jennifer Lopez has folded the shape into her off-duty rotation, usually with a denim jacket and a bag doing the talking. Katie Holmes keeps hers deliberately plain, setting the volume against a button-down shirt and flat shoes, which is the most useful blueprint on offer. Photographed in New York this month, Halle Berry wore a cropped pair with an oversized blazer and white sneakers, showing how little the silhouette asks of everything around it. The lesson worth borrowing is restraint above the waist, since the jeans handle the drama unassisted. A fitted knit or a tucked shirt gives the curve somewhere to begin. Footwear matters more than usual here, with a low-profile sneaker or a slim boot keeping the tapered ankle visible and the proportion intact. Worn this way, the shape holds its bloom through the coldest months, which is more than most gardens manage.

Levi’s, Cinch Jeans, $ 63.98

Cos, Elasticated Jeans, $ 129

Jacquemus, Ovalo de-Nîmes Denim Pants, $ 790