Meghan Markle sports relaxed denim shirt and top knot for Archie's birthday

Meghan Markle, pictured here in South Africa in September 2018, has released a video reading a book to Archie for his first birthday. (Getty Images)

Yahoo Lifestyle is committed to finding you the best products at the best prices. We may receive a share from purchases made via links on this page. Pricing and availability are subject to change. 

The Duke and Duchess of Sussex have released a new video of their son Archie to mark his first birthday. 

The clip shows Meghan reading her son Duck! Rabbit!, a book written by Amy Krouse Rosenthal and illustrated by Tom Lichtenheld.

The video was posted on Save The Children’s Instagram account as part of its ‘Save With Stories’ campaign, which is helping to bring food and learning resources to children impacted by the coronavirus pandemic.

In the clip, filmed by Prince Harry, Meghan is seen sporting a relaxed look, wearing a denim shirt with the sleeves rolled up.

The shirt is thought to be by one of the duchess’ go-to brands: J Crew, who recently filed for bankruptcy amid the coronavirus outbreak

The 38-year-old mum was spotted in the labels Everyday Chambray Shirt, which looks almost identical to the one in the video, prior to marrying into the Royal Family. 

The light wash denim shirt is still available to buy for £87

Meghan kept her hair and make-up equally as minimal, opting for a simple top knot - and only accessorised with a few bracelets on her wrist.

Baby Archie, who hadn’t been pictured since December 2019, wore a simple white onesie and sported a strong head of strawberry blonde hair.

Numerous members of the Royal Family posted on social media on Wednesday to wish Archie a happy birthday, including the Duke and Duchess of Cambridge, the Queen and the Prince of Wales and Duchess of Cornwall.

Get the look: 3 affordable denim shirts

Denim Shirt | £35.99 from Mango 

Denim shirt | £39.95 from Gap

Blue Denim Long Sleeve Shirt | £19.99 from New Look