Sienna Miller is a WHOLE new woman.
We thought it was just a phase, but it seems the super chic lady has traded in her Chanel get-ups for sweats and flats after giving birth to baby Marlowe with boyfriend Tom Sturridge.
The adorbz new parents were seen getting some fresh air in NYC sans baby along with Sienna's doting mother Jo.
While we DO miss fashionista Sienna, we can just tell that she is GLOWING with happiness … even with that grumpy look on her face!
Oh, how the paparazzi just bring out the worst in people!
We just can't get over how good motherhood looks on you! And you shouldn't either!
[Image via Ramey Pix.]
Tags: new york, sienna miller, sienna miller photos, tom sturridge, walk