Sienna Miller shows a hint of her neon pink bra under her T-shirt as she leaves the Apollo theatre in a pair of casual tracksuit bottoms

She is known to make a style statement.

And Sienna Miller, 35, worked her typically casual look as she left the Apollo theatre on Monday night.

Showing a hint of her neon pink bra underneath her white T-shirt, the actress grinned as she left the venue after another spell-binding performance of her play, Cat On A Hot Tin Roof.