By InStyle Staff
Updated Apr 29, 2014 @ 2:15 pm
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Jane Birkin
Credit: Getty Images; Time Inc Photo Studio (7)

You know the name — after all, not many people have an iconic Hermes bag named after them. Jane Birkin, whose style is celebrated in the book Jane & Serge: A Family Album, exemplifies a laid-back, chic aesthetic — an aesthetic thankfully captured in the 1978 photograph above. Let the English actress-singer serve as your star style inspiration and emulate her look with these three simple steps:

1. Start with relaxed separates: Choose patchwork jeans (Goldsign for J.Crew, $268; with a slouchy cut for a casually undone vibe. Slip on a washed-out linen shirt (Loft, $45; with rolled-up sleeves.

2. Accessorize with throwback extras: These delicate pieces have a fine-jewelry feel, like heirlooms left to you by a rich aunt (Melanie Auld cuff, $105; Moon and Lola necklace, $64; Add flat hippie sandals (Belle by Sigerson Morrison, $225; to emulate Birkin's boho cool.

3. Polish it off with a tinted balm: Keep your face bare, with just a hint of a matte berry hue (Revlon Colorburst Matte Balm in Sultry, $7; to enhance your pout.