I have long been an admirer of Sienna Miller‘s effortlessly cool sense of style, and it seems that this won’t be changing any time soon. After a whirlwind trip to Cannes Film Festival where the actress stole our attention in a boho-inspired Chloé gown, she’s once again becoming a talking point in the Who What Wear office—this time for her elevated take on off-duty style.

Stepping out in London this week, the actor crafted a polished ensemble that’s just become my template for easy, weekday elegance. Contrasting the formal nature of the grey blazer that she chose to wear, Miller wore the sleeves casually scrunched up to her elbow—showing some skin and relaxing the energy of the neat garment. Leaning further towards the casual side, the actor selected a pair of billowing horseshoe jeans to add volume to her look, and a slouchy suede bag from Jimmy Choo to accessories in a relaxed yet practical manner.

Finessing her outfit with some polished additions, Miller layered on two gold chain necklaces and selected a smart pair of pointed-toe boots to add an angular element and contrast the casual spirit of her jeans and bag choice.