These days, denim jackets are featured in a slew of cuts and silhouette’s from boxy fitting to waist cinching. The AE Ex-Boyfriend Denim Jacket is the most classic approach to a jean jacket.

Some denim fabric is a mix of cotton and synthetic ... A previous version of this story recommended their Ex-Boyfriend Trucker Jacket, but the brand more recently released this ’90s-inspired ...

Dress down a patterned or tweed jacket with something a little more casual on the bottom half. Pair it with high-rise boyfriend jeans (bonus points for a frayed hem) and a more substantial shoe ...

Oil Green’s look was also very Sienna Miller, largely thanks to his khaki-toned Frame denim jacket, which he layered over a black hoodie. But what makes this look so Sienna Miller coded?