Jessica Alba bundled up in a military-inspired ensemble that was equal parts cozy and chic while shopping with her daughter Honor in London. She layered up in a black turtleneck sweater, gray tuxedo-stripe pants, and black leather boots, then topped it all off with a navy double-layer coat and burgundy fisherman's cap. The actress complemented her Fall style with sleek leather gloves, a black Gerard Darel shoulder bag, and matching leather belt. Re-create this toasty style by working a chunky black sweater with a knit navy wrap and matching sleeveless coat, then slip on tuxedo pants and black leather boots to nail Jessica's look.

10 Celeb-Approved Hats to Instantly Update Your Fall Look!
Whether you're trying to combat a bad hair day or just looking to add extra pizzazz to your everyday ensembles, look no further than these 10 celeb-approved hats. We love the way Gwen Stefani took her edgy leather look to new heights via a plaid newsboy cap, how Hilary Duff accessorized her travel style with a two-toned Rag & Bone topper, and how Reese Witherspoon got cozy in a blue striped beanie. From fedoras and fisherman caps to beanies and buckets, cruise through to see which other stars have been wearing hats, then add a few, including exact items, to your Fall mix.
Gwen Stefani Redefines Cool in a Check-Print Pairing and Black Cape
Gwen Stefani was the epitome of street chic in a white-and-black Michael Kors pairing and patent leather Christian Louboutin pumps ($625) while strolling around London. As if the trendsetter's checkered shell and matching pants weren't cool enough, the blond beauty topped her fierce duo with a posh black cape and matching fisherman cap. She finished off her polished look with loose curls and her signature red lip. Channel Gwen's old-school glam with a black-and-white lattice-print top, matching trousers, a cozy cape, and a fisherman hat for date night, or pair these checkered Kelly Wearstler pants ($224, originally $320) with a classic black top, matching cape, and wool topper for a tame take on this flawless style.

Diane Kruger's Striped Shirt and Polka-Dot Flats Are Parisian-Chic
It's no secret Diane Kruger pairs prints like a pro, and her latest ensemble — a black and white striped shirt, high-waisted floral shorts, and cap-toe polka-dot Loeffler Randall flats ($295) — prove she won't be ousted as the mixed-print master anytime soon. Although her Parisian-chic look was stunning on its own, leave it to Diane to up the wow factor via a black fisherman's hat, chain-strap python shoulder bag, and too-cool shades. Work a striped top and floral-print shorts with her exact flats to re-create Diane's mix-print masterpiece or swap the shorts for this equally sweet Eight Sixty floral skater skirt ($38, originally $68) for extra feminine flair.

Diane Kruger Rocks Printed Leggings With a Fisherman's Hat
Diane Kruger and Joshua Jackson took a romantic stroll in Vancouver with Diane rocking a pair of funky printed leggings. We appreciate that the actress then completed her style with basic pieces. A black fisherman's hat, a black tank, nude Givenchy ankle-strap sandals — score the black version here ($890) — and black Ray-Ban Wayfarers allowed her bold bottoms to take center stage. Wear these similar printed leggings from Topshop ($40) with your basics to mimic Diane's latest Summer ensemble. Fisherman's cap is optional but will lend you that signature standout Diane style.

