We're obsessed with the Sienna Miller x M&S collab - here are the 9 best pieces

Sienna Miller has teamed up with Marks & Spencer to front its latest autumn/winter 2023 collection, these are our favourite looks

Unbelievable! Marks & Spencer's Autumn Collab with Sienna Miller

Sienna Miller partners with Marks & Spencer on its autumn range

Sienna Miller x M&S Autumn: the capsule wardrobe collection

Sienna Miller x M&S Autumn: the capsule wardrobe collection

Sienna Miller partners with Marks & Spencer on its autumn range

The 17 Best Knitwear Brands To Have On Your Radar 2023

Sienna Miller M&S: Sienna Miller's the new face of Marks & Spencer

Sienna Miller M&S: Sienna Miller's the new face of Marks & Spencer

Sienna Miller x M&S Autumn: the capsule wardrobe collection