The blond beauty stuns in her favorite Rag & Bone camel coat.
Real talk: It's Sienna's sexy suede teal boots that really give this outfit some added pizzazz.
The actress makes the most of fall fashion with this cheery pink turtleneck sweater.
When you're the Sienna Miller, basic little black dresses won't cut it, which is where this sharp design comes in.
Sienna is no stranger to stunning airport style.
When one attends the Cannes Film Festival, she most be perfectly styled at all times (including at the airport).
Anybody else getting Disney vibes from this adorable frock?
The street style star isn't afraid to take on any trend, least of all stripes.
She makes a chic impression in a navy design.
Even caught in a sudden storm, the bombshell looks photo-shoot worthy in a royal blue coat with teal-colored fur.
Take note: Flashing a little side-bra is no longer faux pas.
This is how messy-chic is done! Sienna pairs a navy top with lapis pants and orange-rimmed sunnies.