Sienna Miller looks cozy in hoodie and sweatpants while out with boyfriend Oli Green in NYC

Sienna Miller, 41, puts on a casual display in cream hoodie and cozy sweatpants as she walks her dogs with boyfriend Oli Green, 25, in NYC

Sienna Miller was spotted with her boyfriend, Oli Green, in New York City on Tuesday.

The 41-year-old actress looked cozy in a cream hoodie from Taylor Swift’s The Eras Tour and light gray sweatpants as she enjoyed a leisurely stroll with the actor, 25, and her dogs.

The former model – who wore a stylish printed button-down and flared jeans the week before when he was in Soho with a friend – wore a pair of sheepskin-lined, brown suede sandals.

The Extrapolations star and The Mosquito Coast Backpacker alum — who is about 15 years her junior — held hands as they walked to pick up some goodies at Magnolia Bakery.

The American Sniper alum opted for a makeup-free look to showcase her radiant beauty.

Casual outing: Sienna Miller, 41, was spotted with her boyfriend, Oli Green, 25, in New York City on Tuesday

She also left her platinum blonde locks in her somewhat straight and natural hairstyle.

Miller’s boyfriend – with whom she has been romantically linked since February 2022 – also put on a casual display during their walk.

Green wore a classic white T-shirt in combination with dark blue trousers.

He also put on a pair of worn leather boots for their daytime outing.

Like Miller, he left his dark brown hair in its natural curls and rocked a manly stubble.

After three broken engagements, Miller was rumored to be dating Green after they attended the BAFTAs together and enjoyed a New York Knicks basketball game.

In 2022, the couple was also photographed posing together on the red carpet at the Vanity Fair Oscars Party.

Previously, the mother of one — who shares daughter Marlowe, 10, with British actor Tom Sturridge — dated her Alfie co-star, Jude Law, in 2004.

Cozy outfit: The actress looked cozy in a cream hoodie from Taylor Swift's The Eras Tour and light gray sweatpants as she enjoyed a leisurely stroll with the actor and their dogs

Cozy outfit: The actress looked cozy in a cream hoodie from Taylor Swift’s The Eras Tour and light gray sweatpants as she enjoyed a leisurely stroll with the actor and their dogs

Sweet: The Extrapolations star and The Mosquito Coast Backpacker alum - who is about 15 years her junior - held hands as they walked to pick up some goodies at Magnolia Bakery

Sweet: The Extrapolations star and The Mosquito Coast Backpacker alum – who is about 15 years her junior – held hands as they walked to pick up some goodies at Magnolia Bakery

Cute couple: The pair are romantically linked and rumored to be dating after attending the BAFTAs together and enjoying a New York Knicks basketball game in February 2022

Cute couple: The pair are romantically linked and rumored to be dating after attending the BAFTAs together and enjoying a New York Knicks basketball game in February 2022

The former couple began their on-again, off-again relationship and got engaged on Christmas Day that same year.

A few months later, in May 2005, the couple split after the Nest star confessed to having an affair with his children’s nanny.

In 2011, Miller began dating Sturridge before welcoming their daughter in 2012.

The couple split amicably and ended their engagement in 2015.