Unstoppable style-setter Mary-Kate Olsen executed a front-row ready look while attending Giambattista Valli's S/S 10 show in Paris. Wearing a beige leather fringed jacket and platform shoes from Valli's S/S 10 collection, she effortlessly mixed these new designs with her own ankle-grazing vintage YSL skirt for a free-spirited effect. We love the way she continued to cultivate her bohemian chic aesthetic by mixing a fringed jacket with a ruffled polka-dot skirt, as the resulting outfit has the sort of globetrotting glamour that is perfectly appropriate for the City of Lights. You can capture Olsen's fashionable style for yourself by opting for a fringed jacket like Torn by Ronny Kobo's Mia Suede Fringe Jacket ($660) or Illia's Fringed Leather ($598) version, and pairing it with Goodgoth's Antebellum Skirt ($25). Finish your outfit with Charlotte Russe's Suede Platform Slingbacks ($27), for a completely Olsen-worthy look.
Bohemian beauty Sienna Miller looked casually chic while out with her furry friend in Soho last month. Her autumn-appropriate ensemble was devised from a mix of new and old pieces, as she paired jeans from her own line, Twenty8Twelve's Sienna Skinny Legging Jeans ($296) in Smoke Stage 3, with a vintage top and a vintage Levi's vest. Although her exact top and vest were probably deliciously discovered on Portobello Road, you can emulate her style with Alternative Apparel's The Palmer Eco-Vertigrain Long-Sleeve V-Neck ($42), which has similar black-banding details, and Levi's Boyfriend Vest ($50), a modern version of Miller's vintage piece. Her amazing tan studded boots are Strategia's Studded Buckle Suede Low Boots ($547) from the famous British shoe retailer Russel & Bromley. Unfortunately, they are currently sold-out, but you can nab the mid-calf version, Strategia's Cleo Low Boots ($648) which are just as practical come cold weather. Some other lust-worthy options include the nearly identical CO-OP Barneys New York Studded Buckle Ankle Boots ($580) or Steve Madden's Rusttik Boots ($150) if you prefer a little added height. Finally, this style-star has been seen on multiple occasions toting her highly covetable Prada Saffiano & Tessuto Tote ($1550). We can't blame her: the rich red color is a great addition to any outfit. However, you can get an equally as exciting statement bag in this unique hue, if you pick up Badgley Mischka's Platinum Label Noreen Leather Satchel ($395), which retails for a much more wallet-friendly price.
Raven-haired beauty Agyness Deyn looked cocktail appropriate and managed to maintain her charming sense of irony when she wore a boy-meets-girl ensemble to the Burberry party for London Fashion Week. The always-edgy model wore a positively delightful teal bubble dress, strong-shouldered jacket, and carried a playful rhinestone purse, all from Burberry Prorsum's S/S 10 collection. Although these items are not yet available, you can recreate Deyn's across-the-pond aesthetic with Malene Birger's Craigi Ribbon Belted Dress ($330) under a similarly directional piece of outerwear like Sylvia Rielle's Leather Jacket ($693). However, perhaps the main reason we defer to Deyn for styling tips is the way she cunningly pairs Topshop's Kowboy Plain Brogues ($110) and Topshop's Sheer Seam Hold Ups ($12) to downplay the girliness up top. While Topshop's version aren't currently available online, you can snag similarly boyish shoes with Steve Madden's Tuxxedo Oxfords ($70).
Whitney Port was every bit the picture of bi-coastal casual chic when she was out and about in Beverly Hills with some friends last month. Her effortlessly cool ensemble was comprised of Monrow's Motorcycle Vest ($83) and Whyred's Lora Leggings ($110) over a simple navy top. Although The City star's leggings are currently available, you could also opt for So Low's So Low Long Leggings ($51) or American Apparel's Cotton Spandex Jersey Leggings ($26) for better-priced finds. Finally, Whitney jazzed up this neutral palette with fun accessories like her oversized Jimmy Choo Roxanne Sunglasses ($175) in an edgy snakeskin print and her Topshop Tyrant Studded Lace Up Shoes ($40), which are no longer available in black, but can be found in both white and purple-a lovely choice for fall.-Liza Kaplan
Photo of Mary-Kate Olsen, x17; Photos of Sienna Miller, Agyness Deyn, and Whitney Port from Splash.