Pippa Middleton takes son Arthur out for a stroll in Chelsea

Pippa Middleton looked effortlessly stylish as she took her son out for a stroll in leafy west London yesterday. 

The Duchess of Cambridge’s younger sister, 35, chatted on her phone as she pushed baby Arthur through Chelsea in his £1,100 Bugaboo pushchair. 

Wrapping up against the cold, Pippa donned a mustard yellow turtleneck and heavy check coat for the outing. She kept her hands warm with a pair of mittens attached to the handlebars. 

Pippa Middleton looked effortlessly stylish as she took her son out for a stroll in leafy west London yesterday, pictured

Wrapping up against the cold, Pippa donned a mustard yellow turtleneck and heavy check coat for the outing. She kept her hands warm with a pair of mittens attached to the handle

Pippa has kept a relatively low profile since she and husband James Matthews welcomed their first child together in October last year. 

However she has been keen to stay active in the first months of motherhood and has been spotted walking with Arthur on a number of occasions, often near the £17million family home. 

Yesterday Pippa seemed deep in conversation on the phone as she pushed Arthur down the street.  

She sported a favourite Alexa Chung coat, Russell & Bromley boots and added a pair of sunglasses to finish the look. 

Pippa Middleton looked deep in conversation as she pushed Arthur through the streets

The mother-of-one was seen pushing Arthur in his luxury Bugaboo pushchair. The model comes complete with high-spec additions like hand-stitched handlebars and eco-friendly fabrics

Pippa has kept a relatively low profile since she and husband James welcomed their first child together in October last year but has been seen strolling with Arthur on a number of occasions 

Like busy parents everywhere, Pippa made the most of the storage of the tray under the pushchair and had a Waitrose bag tucked inside. 

Perhaps unsurprisingly for a couple with millions at their disposal, Pippa and James spared no expense when it came to choosing their son’s pushchair.  

The state-of-the-art pushchair is from Dutch-based brand Bugaboo, favoured by celebrity parents including Gwyneth Paltrow, Victoria Beckham and Sir Elton John. 

Pippa’s older sister the Duchess of Cambridge, 37, is also rumoured to have purchased a Bugaboo design ahead of the birth of Prince George in 2013.

Pippa sported a favourite Alexa Chung coat, Russell & Bromley boots and added a pair of sunglasses to finish the look

Like busy parents everywhere, Pippa made the most of the storage of the tray under the pushchair and had a Waitrose bag tucked inside

The newly-released Bugaboo Fox Classic model comes complete with high-spec additions like hand-stitched handlebars and eco-friendly fabrics – perfect for parents used to the finer things in life.

It also boasts features designed to make the precious cargo as comfortable as possible, including a quilted micro twill lining and advanced all-wheel suspension system that sounds befitting of a high super car. 

Hands-on father James has also been seen taking his son out and was the picture of pride as he pushed him through London. 

Pippa was most recently seen attending The British Heart Foundation’s annual ‘Beating Hearts’ Ball at the Guildhall in London last month.