Sienna Miller proved chic and comfy airport dressing is easy in a classic trench coat, jeans and striking apple red bag

These Radley boots are the perfect lookalike for Sienna's Lace-Up Leather Ankle Boots from Prada. They boast the same smooth leather finish, elegant lace up detail, and almond-shaped toe that creates a stunning vintage-inspired look. The mid block heel is comfortable for all-day wear and the zip fastening ensures they're easy to get on and off too.

With a straight leg, cropped hem and medium-rise waist, these denim jeans are simple, chic and flattering. The dark blue hue is so versatile, matching Sienna's style perfectly, and we love the slightly worn look of the denim that gives a laid-back and lived in feel to the style. Pair with some suede boots for a casual look or elevate the jeans with some heels.

Unlined for a relaxed fit and casual look, this trench coat from H&M is a stylish and practical layering piece for the cooler seasons. The longline style is so chic, with the sharp, wide peak lapels and detachable tie belt making this a classic and timeless style that can be worn with any outfit, no matter the occasion.

With a similar shape to Sienna's Louis Vuitton handbag, this Mango style is a vastly more affordable piece to help you get her look. Boasting the same two-strap style, with a short carry handle and a longer crossbody strap, you can easily change up your look and we love the bold, bright red tone - especially for autumn.

Plated with shining sterling silver, these hoop earrings from Nordstrom are an elevated everyday style that will bring a subtle shining look to any outfit. The tapered and subtly contoured style is so chic and is perfect for any occasion. Plus, they're also available in gold if silver isn't your tone.

Take on the wet autumn and winter weather in style with these water resistant boots from Timberland. We love that the premium-looking leather is practical as well as chic, with the chunky block heel and rugged sole making this style comfortable to wear and easy to walk in. If that's not enough, these boots also boast a memory foam cushioning for ultimate comfort.